Nur Safiah Esrifadli, et al. “Ultrasonication-Assisted Preparation of Virgin Coconut Oil-Kelulut Honey-Vitamin E Emulsion and Its Bioactivity for Lip Balm Application”. Journal of Advanced Industrial Technology and Application, vol. 6, no. 1, June 2025, pp. 101-1, https://penerbit.uthm.edu.my/ojs/index.php/jaita/article/view/21266.