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Marpaung, D. N.; Pongkendek, J. J.; Azzajjad, M. F.; Sukirno, S. Analysis of Student Motivation Using Chemsketch on Hydrocarbon Topic in SMA Negeri 2 Merauke. J. Appl. Sci. Eng. Technol. Educ. 2021, 3, 69-73.