Anngela, Oppie, et al. “Validasi Metode Penetapan Kadar Boraks Pada Kerupuk Puli Menggunakan Spektrofotometer UV-Vis: Validation of Methods of Borax Concentrations Determination in Puli Crackers Using a UV-Vis Spectrophotometer”. Jurnal Sains Dan Kesehatan, vol. 3, no. 4, Aug. 2021, pp. 375-81, doi:10.25026/jsk.v3i4.258.