Akmal, Rommy, Rusmiati Rusmiati, and Heri Santoso. “THE POTENTIAL OF KALANGKALA (Litsea Angulata) SEED EXTRACT AS A NATURAL SPERMICIDE MATERIAL”. TROPICAL WETLAND JOURNAL 3, no. 2 (July 4, 2017): 1 - 6. Accessed November 21, 2024. https://twj.ulm.ac.id/index.php/twj/article/view/45.