Sebayang, L., and Mieke Afni Hardyani. “Potato Cultivation Technology for Increasing Famers Income in Area Exposed to the Eruption of Mount Sinabung, Karo District”. Jurnal Online PERTANIAN TROPIK, vol. 8, no. 2, Aug. 2021, pp. 98-106, doi:10.32734/jpt.v8i2.6608.