(1)
Saragih, R.; Marpaung, A. Y.; Marbun, J. A.; Artawati, S. Coffee Farmers’ Adaptation to Climate Change in Pamatang Sidamanik (Case Study: Pamatang Sidamanik District, Simalungun Regency, North Sumatra). jppipa, pendidikan ipa, fisika, biologi, kimia 2025, 11, 456-464.