Singh, N. B., Kadam Singh, and Punit Choudhary. “Studies on Heterotic Parameters in Populus Deltoides”. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING 75, no. 03 (August 25, 2015): 400–403. Accessed August 17, 2025. https://www.isgpb.org/journal/index.php/IJGPB/article/view/374.