F. F. Febriyani Febriyani, F. D. T. Faisal, A. A. Asrianti, and H. H. Husna, “The Success of Root Cuttings is Endangered Kalapi (Kalappia celebica Kosterm.) by Giving Rootone-F Growth Regulator”, wasian, vol. 8, no. 2, pp. 115–120, Dec. 2021, doi: 10.62142/qej0tv28.