Imam Saifuloh, N., and Moh. Abdur Rohman Wahid. “Islamic Economic Views on Monthly Promotion Analysis of Online Marketplace: Contracts and Marketing Strategies”. International Conference on Islamic Economics (ICIE), vol. 1, no. 1, Oct. 2024, pp. 53-63, https://proceeding.uingusdur.ac.id/index.php/icie/article/view/2536.