Aditya Rana. “Altitudinal Air Temperature Variations and Its Relationship With Phenological Stages of Apple Fruit Crop in North West Himalayan Region”. International Journal of Advanced Science and Technology 29, no. 10s (June 1, 2020): 5319-5329. Accessed August 7, 2022. https://sersc.org/journals/index.php/IJAST/article/view/22182.