Zaidi NS, Sohaili J, Loh ZZ, Arisa A, Hussein N. Effect of metal content from sewage sludge on the growth of Orthosiphon stamineus. ETM [Internet]. 2021 Nov. 30 [cited 2026 Aug. 11];1(3). Available from: https://journal2.unusa.ac.id/index.php/ETM/article/view/2498