PUSPANINGRUM, ASTRID, M. NILZAM ALY, NUGROHO BAYU WIJANARKO, and NOVIANTO EDI SUHARNO. “Surabaya Tourism Management in Colonial Period (1906-1945)”. Utopía y Praxis Latinoamericana 25, no. 1 (May 17, 2020): 297-302. Accessed September 26, 2025. http://www.produccioncientifica.luz.edu.ve/index.php/utopia/article/view/32118.