Kukuczka J. Roman Stopa’s Unknown Photographs. Sketching a Portrait of the Khoisan Peoples . 89. в: Kłosowicz R, редактор. Pioneers of African Studies in Kraków: In memory of Professor Roman Stopa (1895-1995) [Интернет]. Poland: Księgarnia Akademicka Publishing; 2020 [цитируется по 6 ноябрь 2026 г.]. сс. 89-110. доступно на: https://books.akademicka.pl/publishing/catalog/book/86/chapter/1079