Ginandjar, S. ., M. Subandi, Alamsyah, and Dikayani. “Effect of Understumps Age on the Growth of Budding of Orange Plant (Citrus Sp.)”. Asian Journal of Agriculture and Rural Development, vol. 8, no. 2, Jan. 2019, pp. 160-71, doi:10.18488/journal.1005/2018.8.2/1005.2.160.171.