Delvian, I. M. . Siahaan, and R. Rambey, “Growth Rate of Rhizophora apiculata Propaguls in Two Sylvofishery Ponds in Tanjung Rejo Village Percut Sei Tuan District”, J. Sylva Indonesiana, vol. 2, no. 01, pp. 20 - 27, May 2019.