1998, pp. 57–75. Ogunjobi, Oluseyi. "The Creative Development, Importance, and Dramaturgy of Duro Ladipo's Oba Ko so." Cross / Cultures no. 177 (2014): 291–318,350. Ọlajubu, Oludare. "The Sources of Duro Ladipọ's "Ọba Kò So"." Research in African Literatures 9, no. 3 (1978): 329–62. Yoruba mythology Nigerian plays Yoruba culture Plays set in Africa Yoruba-language literature