MUHARNI, M., F. FERLINAHAYATI, H. YOHANDINI, F. RIYANTI, and N. A. P. PAKPAHAN. “The THE ANTICHOLESTEROL ACTIVITY OF BETULINIC ACID AND STIGMASTEROL ISOLATED FROM THE LEAVES OF SUNGKAI (PARONEMA CANESCENS JACK)”. International Journal of Applied Pharmaceutics, vol. 13, no. 2, Mar. 2021, pp. 198-03, doi:10.22159/ijap.2021v13i2.40372.