Muharni, M., 		Gunanda, F., 		Rahman, S., 		Yohandi, H., & 		Julinar, J.
(2026).
 Triterpenoid  betulinaldehyde and betulinic acid from  the stem bark of Dillenia ochreata (Miq.) Teijsm. & Binn. ex Martelli.
<em>Molekul, 21</em>(2), 328-335.
doi:10.20884/1.jm.2026.21.2.19276