Irnawati, Irnawati, Sugeng Riyanto, Sudibyo Martono, and Abdul Rohman. “The Optimization of Ultrasonic Method for the Extraction of Pumpkin Seed (Cucurbita Maxima)”. Indonesian Journal of Chemometrics and Pharmaceutical Analysis 1, no. 1 (February 14, 2021): 42-51. Accessed November 23, 2024. https://dev.journal.ugm.ac.id/v3/IJCPA/article/view/527.