Berta Pīpiņa (English Wikipedia)

Picukane 2006, p. 432. Picukane, Elizabete (2006). "Pīpiņa, Berta (1883–1942)". In de Haan, Francisca; Daskalova, Krassimira; Loutfi, Anna (eds.). Biographical dictionary of women's movements and feminisms in Central, Eastern, and South Eastern Europe: 19th and 20th centuries. Budapest, Hungary: Central European University Press. pp. 432–435. ISBN 978-9-637-32639-4 – via Project MUSE.
Picukane 2006, p. 433. Picukane, Elizabete (2006). "Pīpiņa, Berta (1883–1942)". In de Haan, Francisca; Daskalova, Krassimira; Loutfi, Anna (eds.). Biographical dictionary of women's movements and feminisms in Central, Eastern, and South Eastern Europe: 19th and 20th centuries. Budapest, Hungary: Central European University Press. pp. 432–435. ISBN 978-9-637-32639-4 – via Project MUSE.
Picukane 2006, p. 434. Picukane, Elizabete (2006). "Pīpiņa, Berta (1883–1942)". In de Haan, Francisca; Daskalova, Krassimira; Loutfi, Anna (eds.). Biographical dictionary of women's movements and feminisms in Central, Eastern, and South Eastern Europe: 19th and 20th centuries. Budapest, Hungary: Central European University Press. pp. 432–435. ISBN 978-9-637-32639-4 – via Project MUSE.

bauskasbiblioteka.lv

Latvian Encyclopedia 2009. "Berta Pīpiņa". Bauskas Centrālā bibliotēka (in Latvian). Bauska, Latvia: Latvju enciklopēdija 2. sēj. (1953–1955). 2009. Archived from the original on 3 September 2016. Retrieved 9 April 2017.

Passmore 2003, p. 127. Passmore, Kevin (2003). Women, Gender, and Fascism in Europe, 1919–45. Manchester, England: Manchester University Press. ISBN 978-0-7190-6617-7.
Wingfield & Bucur 2006, p. 148. Wingfield, Nancy M.; Bucur, Maria (2006). Gender and War in Twentieth-Century Eastern Europe. Bloomington, Indiana: Indiana University Press. ISBN 0-253-11193-5.

Kroders 1929, p. 252. Kroders, Pauls (1929). "Pīpiņ. (Ziemel), Berta". Latvijas darbinieku galerija: 1918–1928 [Latvian employees gallery: 1918–1928] (in Latvian). Riga, Latvia: Grāmatu Draugs. OCLC 924118612. Archived from the original on 2019-09-02. Retrieved 2017-04-09.

Чанка 2015. Чанка (Chanka), Лина (Lina) (8 March 2015). "Восемь первых женщин Латвии" [Eight women's firsts of Latvia] (in Russian). Riga, Latvia: Mixnews. Archived from the original on 9 April 2017. Retrieved 9 April 2017.

Latvian Encyclopedia 2009. "Berta Pīpiņa". Bauskas Centrālā bibliotēka (in Latvian). Bauska, Latvia: Latvju enciklopēdija 2. sēj. (1953–1955). 2009. Archived from the original on 3 September 2016. Retrieved 9 April 2017.
Kroders 1929, p. 252. Kroders, Pauls (1929). "Pīpiņ. (Ziemel), Berta". Latvijas darbinieku galerija: 1918–1928 [Latvian employees gallery: 1918–1928] (in Latvian). Riga, Latvia: Grāmatu Draugs. OCLC 924118612. Archived from the original on 2019-09-02. Retrieved 2017-04-09.
Чанка 2015. Чанка (Chanka), Лина (Lina) (8 March 2015). "Восемь первых женщин Латвии" [Eight women's firsts of Latvia] (in Russian). Riga, Latvia: Mixnews. Archived from the original on 9 April 2017. Retrieved 9 April 2017.
Novikova 1995, p. 30. Novikova, Irina (1995). "Women in Latvia Today: Changes and Experiences". Canadian Woman Studies. 16 (1). Toronto, Ontario: Inanna Publications: 27–31. ISSN 0713-3235. Archived from the original on 9 April 2017. Retrieved 9 April 2017.

Kroders 1929, p. 252. Kroders, Pauls (1929). "Pīpiņ. (Ziemel), Berta". Latvijas darbinieku galerija: 1918–1928 [Latvian employees gallery: 1918–1928] (in Latvian). Riga, Latvia: Grāmatu Draugs. OCLC 924118612. Archived from the original on 2019-09-02. Retrieved 2017-04-09.
Novikova 1995, p. 30. Novikova, Irina (1995). "Women in Latvia Today: Changes and Experiences". Canadian Woman Studies. 16 (1). Toronto, Ontario: Inanna Publications: 27–31. ISSN 0713-3235. Archived from the original on 9 April 2017. Retrieved 9 April 2017.

Novikova 1995, p. 30. Novikova, Irina (1995). "Women in Latvia Today: Changes and Experiences". Canadian Woman Studies. 16 (1). Toronto, Ontario: Inanna Publications: 27–31. ISSN 0713-3235. Archived from the original on 9 April 2017. Retrieved 9 April 2017.