开放教学与学术演示资源，共 10 页。原作者：Abdulbasit Haliru Yakubu; Aliyu Yahaya Gwiokura; Ibrahim Hassan Sani; Yusuf Abdullahi Dachia; Adamu Abubakar Sadeeq; Bulama Ibrahim; Oluwatosin Imoleayo Oyeniran; Leonard Mela Paul; Murdakai Tanko; Abubakar Bilyamini Mu'azu。保留原文件语言与内容。
资源署名：Abdulbasit Haliru Yakubu; Aliyu Yahaya Gwiokura; Ibrahim Hassan Sani; Yusuf Abdullahi Dachia; Adamu Abubakar Sadeeq; Bulama Ibrahim; Oluwatosin Imoleayo Oyeniran; Leonard Mela Paul; Murdakai Tanko; Abubakar Bilyamini Mu'azu · cc-by-4.0 · 原始来源
