Rojil Nugroho Bayu Aji, Eko Satriya Hermawan, Riyadi, Agus Trilaksana, Esa Patridina, Nasution, Moch. Mubarok Muharam, and Wisnu. 2023. “History of Edu-Tourism for Strengthening Nationalism and Heroism in the City of Surabaya”. Technium Social Sciences Journal 50 (1). Constanta, Romania:543-47. https://doi.org/10.47577/tssj.v50i1.9939.