Ndagi, Abdullahi. “Impact of Celebrity Endorsement and Its Effect on the Loyalty of Undergraguates Students to Airtel Network”. Lapai Journal of Economics 4, no. 2 (December 30, 2020): 253–266. Accessed July 3, 2024. https://ojs.ibbujournals.com.ng/index.php/lje/article/view/93.