D. Gonzales, Rosanna, Catherine N. Lumanta, and Procerfina D. Vingua. “Customers’ Satisfaction on Campus Related Delivery Services”.
International Journal of English Literature and Social Sciences (IJELS) 5, no. 3 (July 8, 2020). Accessed May 1, 2025.
https://journal-repository.com/index.php/ijels/article/view/2181.