Notrilauvia N, Harahap YF, Marten TW, Armando F, Nanda R, marhamah ithvie, et al. PROJECT-BASED ENVIRONMENTAL EDUCATION IN A NON-ADIWIYATA SCHOOL. universe [Internet]. 2025 Dec. 31 [cited 2026 Apr. 17];6(2):218-23. Available from: http://universe.ppj.unp.ac.id/index.php/universe/article/view/1034