Faridah, F., and M. C. Thomas. “Analisis ?-Karoten Dalam Waluh (Cucurbita Sp.) Secara Spektrofotometri Cahaya Tampak”. Proceeding of Mulawarman Pharmaceuticals Conferences, vol. 3, no. 2, Apr. 2016, pp. 194-03, doi:10.25026/mpc.v3i2.107.