Nurhayati, Lany, Supriyono Eko Wardoyo, and Rika Rosita. 2017. “PERSENTASE TOTAL AKTIVITAS ANTIOKSIDAN DARK CHOCOLATE DAN MILK CHOCOLATE SECARA SPEKTROFOTOMETRI”. Sains Natural: Journal of Biology and Chemistry 2 (1):70-80. https://doi.org/10.31938/jsn.v2i1.36.