Sani Sarjadi, Mohd, Wahidah Zabidi, Xin Lin Wong, and Shu Er Tan. “Synthesis and Surface Morphology of The Precursors of the N-Alkylated Isoindigo”. International Journal of Engineering and Technology 7, no. 4.38 (December 3, 2018): 1686–1691. Accessed August 16, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/29235.