Abdillah, Muhammad Helmy. “PENGARUH ABU BOILER PEMBAKARAN BATUBARA TERHADAP SIFAT FISIKA-KIMIA TIGA TIPOLOGI LAHAN RAWA”. AGRISAINS 4, no. 01 (May 30, 2018): 5–10. Accessed May 22, 2024. https://ejournal.polihasnur.ac.id/index.php/ags/article/view/279.