Dani Nandiyanto, Asep Bayu, et al. “Distance Learning Innovation in Teaching Chemistry in Vocational School Using the Concept of Isotherm Adsorption of Carbon Microparticles”. Journal of Technical Education and Training, vol. 14, no. 1, June 2022, pp. 14-26, https://publisher.uthm.edu.my/ojs/index.php/JTET/article/view/9411.