Rithaa J.N.*, Magana A.M. , Nduru G.M. , Githae E. W. “Analysis of Phenophases That Control in-Situ Establishment of Ocotea Usambarensis Engl. In the Southern Slopes of Mt. Kenya Forest”. International Journal of Emerging Trends in Science and Technology, Vol. 5, no. 07, July 2018, pp. 6674-87, http://igmpublication.org/ijetst.in/index.php/ijetst/article/view/1270.