Kundiri, A.M., and O. Adebisi. “Characteristics of Air Travellers and Travel Processes at Mallam Aaminu Kano International Airport, Kano”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 3 (October 1, 2003): 39-43. Accessed May 13, 2024. https://www.azojete.com.ng/index.php/azojete/article/view/311.