Guiapal, F. M., A. M. Usop, and J. D. Lumbu-an. “Awareness and Acceptability of Pre-Certified Halal Foods to Non-Muslim Students Among Secondary Schools”. International Journal of Multidisciplinary: Applied Business and Education Research, Vol. 5, no. 7, July 2024, pp. 2620-35, doi:10.11594/ijmaber.05.07.20.