R. Heryanto, Y. Herdiyeni, and Y. R. Noviyanti, “Quality Control of Jati Belanda Leaves (Guazuma ulmifolia) using Image Analysis and Chemometrics”, J Jamu Indo, vol. 1, no. 1, pp. 1–9, Mar. 2016, doi: 10.29244/jji.v1i1.2.