Halim AK. PENGELOLAAN BANK SAMPAH DENGAN BERBASIS R4 (REDUCE, REUSE, RECYCLE, REPLANT). Oborpenmas [Internet]. 2018 Oct. 1 [cited 2024 Sep. 27];1(1). Available from: http://150.107.142.43/index.php/OBORPENMAS/article/view/1481