Kurniati, Tuti, Neneng Windayani, and Milla Listiawati. “Total Lactic Acid, Protein, Fat, and Carbohydrates in Curd Kefir and Cow Colostrum Kefir”. Jurnal Biodjati 5, no. 2 (November 30, 2020): 271–280. Accessed April 3, 2025. https://journal.uinsgd.ac.id/index.php/biodjati/article/view/9668.