Vengadesperumal B, Nor Faizah binti Razali. The study on Nannochloropsis oculata and Chlorella Vulgaris microalgae freely suspended technique for heavy metal removal in Palm Oil Mill Effluent. peat [Internet]. 2023 Dec. 21 [cited 2026 Aug. 15];4(2):950-7. Available from: https://periodical.uthm.edu.my/index.php/peat/article/view/10074