Hulyadi, Hulyadi, et al. “Effect of Tauge Extract and Starter Volume on the Quality of Liquid Fertilizer Whey Tofu”. Jurnal Ilmiah IKIP Mataram, vol. 8, no. 1, Feb. 2023, pp. 86-98, https://e-journal3.undikma.ac.id/index.php/jiim/article/view/4073.