WULANDARI, S.; OKFITASARI, A. PENGEMBANGAN PARIWISATA UMBUL INGAS COKRO DI KABUPATEN KLATEN. AKTUAL, [S. l.], v. 20, n. 2, 2022. Disponível em: https://jurnal.stietrisnanegara.ac.id/index.php/aktual/article/view/198. Acesso em: 8 dec. 2025.