Armando Mussa Sani; Jasmina Barckhausen (23 June 2017). "Theatre sheds light on conflicts". D+C, development and cooperation. Archived from the original on 15 August 2017. Retrieved 15 August 2017.
Bowman, Joye L. (22 January 2009). "Abdul Njai: Ally and Enemy of the Portuguese in Guinea-Bissau, 1895–1919". The Journal of African History. 27 (3): 463–479. doi:10.1017/S0021853700023276. S2CID162344466.
Schoenmakers, Hans (1987). "Old Men and New State Structures in Guinea-Bissau". The Journal of Legal Pluralism and Unofficial Law. 19 (25–26): 99–138. doi:10.1080/07329113.1987.10756396.
Wright, Donald R (1987). "The Epic of Kalefa Saane as a guide to the Nature of Precolonial Senegambian Society-and Vice Versa". History in Africa. 14: 287–309. doi:10.2307/3171842. JSTOR3171842. S2CID162851641.
Wright, Donald R (1987). "The Epic of Kalefa Saane as a guide to the Nature of Precolonial Senegambian Society-and Vice Versa". History in Africa. 14: 287–309. doi:10.2307/3171842. JSTOR3171842. S2CID162851641.
Bowman, Joye L. (22 January 2009). "Abdul Njai: Ally and Enemy of the Portuguese in Guinea-Bissau, 1895–1919". The Journal of African History. 27 (3): 463–479. doi:10.1017/S0021853700023276. S2CID162344466.
Wright, Donald R (1987). "The Epic of Kalefa Saane as a guide to the Nature of Precolonial Senegambian Society-and Vice Versa". History in Africa. 14: 287–309. doi:10.2307/3171842. JSTOR3171842. S2CID162851641.
Barbosa, José (2015). Língua e desenvolvimento: O caso da Guiné-Bissau [Language and Development: The case of Guinea-Bissau] (PDF) (Master's thesis) (in Portuguese). Universidade de Lisboa. Archived(PDF) from the original on 9 August 2017. Retrieved 10 May 2017.
Barbosa, José (2015). Língua e desenvolvimento: O caso da Guiné-Bissau [Language and Development: The case of Guinea-Bissau] (PDF) (Master's thesis) (in Portuguese). Universidade de Lisboa. Archived(PDF) from the original on 9 August 2017. Retrieved 10 May 2017.
Armando Mussa Sani; Jasmina Barckhausen (23 June 2017). "Theatre sheds light on conflicts". D+C, development and cooperation. Archived from the original on 15 August 2017. Retrieved 15 August 2017.