Singh, Thiyam Jefferson, and Tara Gupta. “Studies of the Reproductive Biology of Toona Ciliata M. Roem under the Himachal Pradesh Condition”. International Journal of Bio-Resource and Stress Management, vol. 8, no. Jun, 3, June 2017, pp. 437-43, https://www.ojs.pphouse.org/index.php/IJBSM/article/view/1133.