SAHRIR, Muhammad Sabri; ISMAIL, Taufik; YAHAYA, Mohd Firdaus; ZUBIR, Muhamad Azhar. An Insight into the Needs Analysis of the Mobile Language Traveller App Design For Mutawwif (Umrah Tour Guide) Via Mobile Platforms During COVID-19 Outbreak. The journal of contemporary issues in business and government, [S. l.], v. 27, n. 5, p. 946–961, 2021. Disponível em: https://cibgp.com/index.php/1323-6903/article/view/2034. Acesso em: 29 oct. 2025.