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Amanda NA, Syahrani AN, Erliyanti N, Panjaitan R, Pujiastuti C, Soemargono S. Kajian Ekstraksi Lada Hitam (Piper nigrum l.) Menggunakan Metode Ultrasound-Assisted Extraction : Extraction Study of Black Pepper (Piper nigrum l.) Using Ultrasound-Assisted Extraction Method. RBAET [Internet]. 2023 Oct. 31 [cited 2024 May 16];7(2):8-15. Available from: https://rbaet.ub.ac.id/index.php/rbaet/article/view/2943