日晷 (Chinese Wikipedia)

Waugh, Albert. Sundials: Their Theory and Construction. New York: Dover Publications. 1973: 34.
Stong, C.L. The Amateur Scientist. Scientific American. 1959, 200 (5): 185–198.
National Maritime Museum; Lippincott, Kristen; Eco, Umberto; Gombrich, E. H. The Story of Time. London: Merrell Holberton in association with National Maritime Museum. 1999: 42–43. ISBN 1-85894-072-9.

books.google.com (Global: 3^rd place; Chinese: 8^th place)

Trentin, Guglielmo; Repetto, Manuela. Using Network and Mobile Technology to Bridge Formal and Informal Learning. Elsevier. 2013-02-08 [2021-12-23]. ISBN 9781780633626. （原始内容存档于2021-08-20）（英语）.
Christopher St. J.H. Daniel. Sundials. Osprey Publishing. 4 March 2008: 47– [25 March 2013]. ISBN 978-0-7478-0558-8. （原始内容存档于2015-10-16）.

doi.org (Global: 2^nd place; Chinese: 23^rd place)

Schaldach K. The arachne of the Amphiareion and the origin of gnomonics in Greece. Journal of the History of Astronomy. 2004, 35: 435–445. ISSN 0021-8286. doi:10.1177/002182860403500404.

montana.edu (Global: 7,206^th place; Chinese: low place)

solar.physics.montana.edu

Michelle B. Larson. Making a sundial for the Southern hemisphere. [2008-07-11]. （原始内容存档于2020-11-13）.
Michelle B. Larson. Making a sundial for the Southern hemisphere. [2008-07-11]. （原始内容存档于2021-03-17）.

precisedirections.co.uk (Global: low place; Chinese: low place)

Karney, Kevin. Variation in the Equation of Time (PDF). [2014-12-31]. （原始内容存档 (PDF)于2016-06-10）.

stedmundsbury.gov.uk (Global: low place; Chinese: low place)

St. Edmundsbury, Borough Council. Telling the story of time measurement: The Beginnings. [2008-06-20]. （原始内容存档于August 27, 2006）.

sundialsoc.org.uk (Global: low place; Chinese: low place)

Moss, Tony. How do sundials work. British Sundial society. [21 September 2013]. （原始内容存档于August 2, 2013）. This ugly plastic ‘non-dial’ does nothing at all except display the ‘designer’s ignorance and persuade the general public that ‘real’ sundials don’t work.
British Sundial, Society. BSS Glossary. [2011-05-02]. （原始内容存档于2007-10-10）.

sunrisesunsetmap.com (Global: low place; Chinese: low place)

Morrissey, David. Worldwide Sunrise and Sunset map. [28 October 2013]. （原始内容存档于2021-02-10）.

web.archive.org (Global: 1^st place; Chinese: 1^st place)

Moss, Tony. How do sundials work. British Sundial society. [21 September 2013]. （原始内容存档于August 2, 2013）. This ugly plastic ‘non-dial’ does nothing at all except display the ‘designer’s ignorance and persuade the general public that ‘real’ sundials don’t work.
Trentin, Guglielmo; Repetto, Manuela. Using Network and Mobile Technology to Bridge Formal and Informal Learning. Elsevier. 2013-02-08 [2021-12-23]. ISBN 9781780633626. （原始内容存档于2021-08-20）（英语）.
British Sundial, Society. BSS Glossary. [2011-05-02]. （原始内容存档于2007-10-10）.
Michelle B. Larson. Making a sundial for the Southern hemisphere. [2008-07-11]. （原始内容存档于2020-11-13）.
Michelle B. Larson. Making a sundial for the Southern hemisphere. [2008-07-11]. （原始内容存档于2021-03-17）.
British Sundial, Society. The Sundial Register. [2014-10-13].
Karney, Kevin. Variation in the Equation of Time (PDF). [2014-12-31]. （原始内容存档 (PDF)于2016-06-10）.
The Claremont, CA, Bowstring Equatorial. Photo Info. [2008-01-19]. （原始内容存档于2008-04-22）.
Christopher St. J.H. Daniel. Sundials. Osprey Publishing. 4 March 2008: 47– [25 March 2013]. ISBN 978-0-7478-0558-8. （原始内容存档于2015-10-16）.
The Sundial and Geometry p 38. 互联网档案馆的存檔，存档日期2016-03-04.
Morrissey, David. Worldwide Sunrise and Sunset map. [28 October 2013]. （原始内容存档于2021-02-10）.
St. Edmundsbury, Borough Council. Telling the story of time measurement: The Beginnings. [2008-06-20]. （原始内容存档于August 27, 2006）.
https://web.archive.org/web/20080422090829/http://www.wsanford.com/~wsanford/exo/sundials/ca/claremont/info.html

worldcat.org (Global: 5^th place; Chinese: 12^th place)

Schaldach K. The arachne of the Amphiareion and the origin of gnomonics in Greece. Journal of the History of Astronomy. 2004, 35: 435–445. ISSN 0021-8286. doi:10.1177/002182860403500404.

wsanford.com (Global: low place; Chinese: low place)

The Claremont, CA, Bowstring Equatorial. Photo Info. [2008-01-19]. （原始内容存档于2008-04-22）.
The Sundial and Geometry p 38. 互联网档案馆的存檔，存档日期2016-03-04.

日晷 (Chinese Wikipedia)

archive.org (Global: 6th place; Chinese: 4th place)

books.google.com (Global: 3rd place; Chinese: 8th place)

doi.org (Global: 2nd place; Chinese: 23rd place)

montana.edu (Global: 7,206th place; Chinese: low place)

solar.physics.montana.edu

precisedirections.co.uk (Global: low place; Chinese: low place)

stedmundsbury.gov.uk (Global: low place; Chinese: low place)

sundialsoc.org.uk (Global: low place; Chinese: low place)

sunrisesunsetmap.com (Global: low place; Chinese: low place)

web.archive.org (Global: 1st place; Chinese: 1st place)

worldcat.org (Global: 5th place; Chinese: 12th place)

wsanford.com (Global: low place; Chinese: low place)

archive.org (Global: 6^th place; Chinese: 4^th place)

books.google.com (Global: 3^rd place; Chinese: 8^th place)

doi.org (Global: 2^nd place; Chinese: 23^rd place)

montana.edu (Global: 7,206^th place; Chinese: low place)

web.archive.org (Global: 1^st place; Chinese: 1^st place)

worldcat.org (Global: 5^th place; Chinese: 12^th place)