Cahila, Waldmar, João Sicato Kandjo, and José António Milongo. 2023. “Ombala Ekovongo: An Enrichment to the 11th Class History Program at Liceu Samuel Lussate”. RECIPEB: Revista Científico-Pedagógica Do Bié 3 (2):61-85. https://www.recipeb.espbie.ao/ojs/index.php/recipeb/article/view/190.