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Putri D, Supriatna A, Rahmawati T. Soap Making Project from Waste Cooking Oil for High School Students’ Chemistry Learning: Qualitative Content Analysis . jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2024 Jun. 20 [cited 2024 Jul. 1];10(6):3147-54. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/7701