Purity Test of Durian Seed Galactomannan Extract (Durio zibethinus L.) using the Luff Schoorl Method. jisk [Internet]. 2022 Dec. 31 [cited 2024 Nov. 21];3(3):1-5. Available from: https://ejournal.sumateraconnect.or.id/index.php/jisk/article/view/50