Umami, Z. et al. 2023. The effect of education on knowledge and attitude In halal and tayyib food selection among Muslim. Jurnal Gizi dan Dietetik Indonesia (Indonesian Journal of Nutrition and Dietetics). 11, 2 (Aug. 2023), 55–61. DOI:https://doi.org/10.21927/ijnd.2023.11(2).55-61.