Barus YA, Restu R, Darwin D. Analysis of Internalization Principles of Adiwiyata Mandiri Program in the Learning Process in Junior High School (Case Study at State Junior High School 3 Deli Serdang District). IJSBAR [Internet]. 2017 Aug. 5 [cited 2024 May 2];35(1):241-5. Available from: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7842