Jusman S, Maryati S. The Determinant of Consumer Surplus for Tourist in Belakang Padang Island, Batam City, Riau Islands Province . daengku j. hum. soc. sci. innov. [Internet]. 2025 Mar. 26 [cited 2026 Jun. 13];5(2):257-63. Available from: https://qemsjournal.org/index.php/daengku/article/view/3806