Hasan, M., B. Iswanto, and N. Aulia. “The Development of Halal Cosmetics Industry in East Kalimantan: Halal Awareness Perspectives”. Journal of Multidisciplinary Islamic Studies EISSN 2785-9223, Vol. 1, no. 1, June 2021, pp. 1-10, https://majmuah.com/journal/index.php/jmis/article/view/83.