Rabi’u Yusuf, Nura Bello, and Ishaq Isah Ishaq. “Archaeological Discovery of Early Settlements in the Kabi Valley, Northwestern Nigeria”. LAPAI JOURNAL OF NIGERIA HISTORY, vol. 13, no. 1, Feb. 2021, pp. 84-94, https://ojs.ibbujournals.com.ng/index.php/ljnnhh/article/view/794.