Ismail, S., S. Marjudi, W. Wan Hassan, R. Raja Lope Ahmad, A. Md Kassim, R. Setik, and A. Hamid. “Perceptions and Barriers of Islamic Transactions Among Halal SMEs in Malaysia”. Selangor Science & Technology Review (SeSTeR), Vol. 4, no. 2, Oct. 2020, pp. 11-19, http://sester.journals.unisel.edu.my/ojs/index.php/sester/article/view/158.