Lua APA (7ú heag.)

Osisanwo, I. A., & Afolahan, A. (2018). Register Range in the West African School Certificate English Language Examination (1974-1983). Obafemi Awolowo University.

Lua i Stíl Chicago (17ú heag.)

Osisanwo, Isaac Adewale, agus Adebisi Afolahan. Register Range in the West African School Certificate English Language Examination (1974-1983). Obafemi Awolowo University, 2018.

Lua MLA (9ú heag.)

Osisanwo, Isaac Adewale, agus Adebisi Afolahan. Register Range in the West African School Certificate English Language Examination (1974-1983). Obafemi Awolowo University, 2018.

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