Yulianti, D., H. ., and T. I. Rukmana. “ISOLATION, PURIFICATION, AND CHARACTERIZATION OF BOVINE TENDON COLLAGEN AND ANALYSIS OF GLYCINE, PROLINE, AND HYDROXYPROLINE BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY-FLUORESCENCE”. International Journal of Applied Pharmaceutics, vol. 10, no. 1, Dec. 2018, pp. 311-5, doi:10.22159/ijap.2018.v10s1.69.