Brown, Robert "Bob" (2009). Saper, Craig J. (ed.). The Readies. Literature by Design: British and American Books 1880–1930. Houston: Rice University Press. ISBN9780892630226. OCLC428926430. Retrieved 2012-12-06.
Colbjørnsen, Terje (2014-06-10). "Digital divergence: analysing strategy, interpretation and controversy in the case of the introduction of an ebook reader technology". Information, Communication & Society. 18 (1): 32–47. doi:10.1080/1369118x.2014.924982. ISSN1369-118X. S2CID144104890.
Colbjørnsen, Terje (2014-04-07). "What is the VAT? The policies and practices of value added tax on ebooks in Europe". International Journal of Cultural Policy. 21 (3): 326–343. doi:10.1080/10286632.2014.904298. ISSN1028-6632. S2CID154763274.
Sangwan, Sunanda; Siguaw, Judy A.; Guan, Chong (2009-10-30). "A comparative study of motivational differences for online shopping". ACM SIGMIS Database. 40 (4): 28. doi:10.1145/1644953.1644957. ISSN0095-0033. S2CID16479656.
Patel, Nilay (November 21, 2007). "Kindle Sells Out in 5.5 Hours". Engadget.com. Archived from the original on November 23, 2007. Retrieved November 21, 2007.
Colbjørnsen, Terje (2014-06-10). "Digital divergence: analysing strategy, interpretation and controversy in the case of the introduction of an ebook reader technology". Information, Communication & Society. 18 (1): 32–47. doi:10.1080/1369118x.2014.924982. ISSN1369-118X. S2CID144104890.
Colbjørnsen, Terje (2014-04-07). "What is the VAT? The policies and practices of value added tax on ebooks in Europe". International Journal of Cultural Policy. 21 (3): 326–343. doi:10.1080/10286632.2014.904298. ISSN1028-6632. S2CID154763274.
Sangwan, Sunanda; Siguaw, Judy A.; Guan, Chong (2009-10-30). "A comparative study of motivational differences for online shopping". ACM SIGMIS Database. 40 (4): 28. doi:10.1145/1644953.1644957. ISSN0095-0033. S2CID16479656.
Patel, Nilay (November 21, 2007). "Kindle Sells Out in 5.5 Hours". Engadget.com. Archived from the original on November 23, 2007. Retrieved November 21, 2007.
Brown, Robert "Bob" (2009). Saper, Craig J. (ed.). The Readies. Literature by Design: British and American Books 1880–1930. Houston: Rice University Press. ISBN9780892630226. OCLC428926430. Retrieved 2012-12-06.
Colbjørnsen, Terje (2014-06-10). "Digital divergence: analysing strategy, interpretation and controversy in the case of the introduction of an ebook reader technology". Information, Communication & Society. 18 (1): 32–47. doi:10.1080/1369118x.2014.924982. ISSN1369-118X. S2CID144104890.
Colbjørnsen, Terje (2014-04-07). "What is the VAT? The policies and practices of value added tax on ebooks in Europe". International Journal of Cultural Policy. 21 (3): 326–343. doi:10.1080/10286632.2014.904298. ISSN1028-6632. S2CID154763274.
Sangwan, Sunanda; Siguaw, Judy A.; Guan, Chong (2009-10-30). "A comparative study of motivational differences for online shopping". ACM SIGMIS Database. 40 (4): 28. doi:10.1145/1644953.1644957. ISSN0095-0033. S2CID16479656.