Rani, R., and M. Muslim. “The Meaning and Function of Hata-Hata in the Mangupa–Upa Procession of the Mandailing Community in Sei Deras Hulu Village, Rokan Hulu Regency”. International Journal Of Humanities Education and Social Sciences (IJHESS), vol. 5, no. 5, Apr. 2026, doi:10.55227/ijhess.v5i5.2175.