Darlan, N. H., Siregar, H. H., Listia, E. and Sutarta, E. S. (2009) “<strong>RECENT EVALUATION OF RISING TEMPERATURE AND OIL PALM EXTENSION TO HIGHER ELEVATION IN NORTH SUMATRA</strong><br&gt;(EVALUASI TERKINI KENAIKAN SUHU DAN PERLUASAN TANAMAN KELAPA SAWIT KE DATARAN TINGGI DI SUMATERA UTARA)”, Agromet. Bogor, Indonesia, 23(2), pp. 112-122. doi: 10.29244/j.agromet.23.2.112-122.