MAULANA, Wisnu Sukma. Design of Backend API Payment Gateway System Implementation to Minimize Fraud and Facilitate Payment Transactions at Hattrick Online Game Cafe. International Journal Science and Technology, [S. l.], v. 4, n. 2, p. 142–151, 2025. DOI: 10.56127/ijst.v4i2.2224. Disponível em: https://journal.admi.or.id/index.php/IJST/article/view/2224. Acesso em: 29 jan. 2026.