Alatas, Abdullah, and Abdul Wahab. “Extended Theory Of Planned Behaviour: Investigating Halal Food Purchasing Decisions On Tokopedia E-Commerce In Indonesia”. JURNAL ECONOMINA 5, no. 7 (July 30, 2026): 4031–4047. Accessed August 6, 2026. https://ejournal.45mataram.ac.id/index.php/economina/article/view/3299.