Junaidi, Eka, I Nyoman Loka, Syarifa Wahidah Al Idrus, and Baiq Fara Dwirani Sofia. 2022. “Effectiveness of Rub Ash Waste As Adsorbent Household Waste Water ”. Jurnal Pijar Mipa 17 (6):820-25. https://doi.org/10.29303/jpm.v17i6.4225.