Todoc, Marianica, Jaecel Obenza, Angelica Joy Alejano, and Relly Tiozon. “Impact of Product Innovation on Compentency Level of Fast-Food Chain in Quezon City: Vol.4, No.1”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research 4, no. 1 (June 7, 2024). Accessed July 1, 2024. https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/13772.