Sharma, N. C., and N. S. Kaith. 2015. “Scientific Approach Improves Yield and Quality of Apples: A Success Story of Kotkhai in Shimla District of Himachal Pradesh, India”. International Journal of Economic Plants 2 (Feb, 1):032-034. https://ojs.pphouse.org/index.php/IJEP/article/view/4404.