“Soil Properties and Rainfall Regimes in Cinnamon (Cinnamomum Burmannii) Plantations in Mandailing Natal, North Sumatra: Sifat Tanah Dan Pola Curah Hujan Pada Perkebunan Kayu Manis (Cinnamomum Burmannii) Di Mandailing Natal, Sumatera Utara”. 2026. PERENNIAL 22 (1): 22-29. https://doi.org/10.24259/perennial.v22i1.49583.