Development and Validation of RP-HPLC Analysis Method for Determination of Total Alkaloid Content of Soursop (Annona muricata L.) Leaf Extract. EKSAKTA [Internet]. 2022 Sep. 30 [cited 2026 Jul. 28];23(03):175-87. Available from: https://eksakta.ppj.unp.ac.id/index.php/eksakta/article/view/325