Andrade, E., Garcia, N.D., Valbuena, D.K. and Rosete, M.A. 2022. Effect of Sin Tax on Electronic Cigarette Consumption in Quezon City. UJoST- Universal Journal of Science and Technology. 2, 1 (Nov. 2022), 167–220. DOI:https://doi.org/10.11111/ujost.v2i1.99.