ALGHAIL, AONI ALI MOHAMMED MOHAMMED; KHALED, Shamsul. A Secure Online Booking System with OTP for Sultans Spa Resort. Applied Information Technology And Computer Science, [S. l.], v. 6, n. 1, p. 663–682, 2025. Disponível em: https://publisher.uthm.edu.my/periodicals/index.php/aitcs/article/view/18872. Acesso em: 7 apr. 2026.