https://mismedan.org/wp-content/uploads/2025/04/Sample-collected-at-08_40-after-acid-was-added.png319555Mery Widiasarihttps://mismedan.org/wp-content/uploads/2023/11/logo-mismedan-2023.pngMery Widiasari2025-04-28 10:01:052025-04-29 14:39:32Determination of Dissolved Oxygen (DO) of The Water in MIS Pond