Santriadi, Mohammad Thariq, et al. “Formulation and Physicochemical and Organoleptic Analysis Tofu As Additional Materials in Making Steamed Brownies”. Agroindustrial Technology Journal, vol. 4, no. 2, Nov. 2020, pp. 120-9, https://atj.journal.unida.gontor.ac.id/index.php/atj/article/view/140.