SILITONGA, Y. W.; LUBIS, R. H.; HARAHAP, Q. H. Utilization of Salak Sidimpuan (Salacca sumatrana Becc) as A Nata De Salacca Substrate in Sitaratoit Village South Tapanuli Selatan Sumatera Utara. Journal of Saintech Transfer, v. 1, n. 2, p. 175-180, 8 Apr. 2019.