Valery Allen R, Syahfitra M. Analisis Komparatif Efisiensi Rendemen Dan Stabilitas Kadar Katekin Ekstrak Gambir (Uncaria Gambir) Menggunanakan Pengepres Hidrolik Dan Pengepres Ulir Skala Industri Kecil: Comparative Analysis of Yield Efficiency and Stability of Catechin Content of Gambir (Uncaria Gambir) Extract Using Hydraulic Press and Screw Press on Small Industrial Scale. Atech-i [Internet]. 2026 Jan. 20 [cited 2026 Oct. 6];3(1):38-47. Available from: https://atech-i.id/index.php/atechi/article/view/50