Ifadah, Raida Amelia, et al. “Physical Characteristics of White Bread With Various Levels of Purple Sweet Potato Flour Substitution”. Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian, vol. 10, no. 1, Feb. 2026, pp. 48-56, doi:10.32585/ags.v10i1.7731.