“RECENT EVALUATION OF RISING TEMPERATURE AND OIL PALM EXTENSION TO HIGHER ELEVATION IN NORTH SUMATRA(EVALUASI TERKINI KENAIKAN SUHU DAN PERLUASAN TANAMAN KELAPA SAWIT KE DATARAN TINGGI DI SUMATERA UTARA)”. Agromet 23, no. 2 (December 12, 2009): 112–122. Accessed January 19, 2026. https://journal.ipb.ac.id/agromet/article/view/3516.