A. . Ayari, M. . Meftahi, F. . Zammeli, and M. . Larbi Khouja, “Seed Production Variability of Aleppo Pine (Pinus Halepensis Mill.) within Korbus Arboretum (North East of Tunisia)”, Glob. J. Bot. Sci., vol. 4, no. 1, pp. 20–23, Jul. 2016.