Rullyansyah, S., F. Azizah, and B. Kunsah. “Effect of Aloe Vera Extract for Reducing Formaldehyde Level in Tuna Fish for Halal and Thoyyib Food”. Journal of Halal Product and Research (JHPR), vol. 3, no. 1, June 2020, pp. 20-24, doi:10.20473/jhpr.vol.3-issue.1.20-24.