“Synthesis, Characterization, and Photoluminescence Properties of 2-Amino 6-Nitrobenzothiazole-Melamine-Formaldehyde Copolymer-Charcoal Composite”. Indian Journal of Engineering and Materials Sciences (IJEMS), vol. 30, no. 6, Dec. 2023, p. 838, https://doi.org/10.56042/ijems.v30i6.4529.