Dahalan, F. A., and N. . Azizah Parmin. “Morphological Characterization of Gram-Positive and Gram-Negative Bacteria from Treated Latex Processing Wastewater”. Environmental and Toxicology Management, vol. 1, no. 2, Aug. 2021, pp. 32-36, doi:10.33086/etm.v1i2.2263.