Hafizhan, Dylan, and Widiati Isana. “From Colonial Communications Hub to Republican Asset: The PTT Headquarters in Bandung, 1920–1945”. Jurnal Kawasan Sejarah, vol. 3, no. 1, June 2025, pp. 69-88, https://journal.uinsgd.ac.id/index.php/jks/article/view/60379.