et.al, Sandy Kosasi. “Enhancing E-Customer Loyalty to Online Supermarkets During the Covid-19 Pandemic”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 3 (April 11, 2021): 1423–1430. Accessed September 12, 2025. https://textitlejournal.com/turcomat.org/index.php/turkbilmat/article/view/939.