Sharma, Harish Kumar, et al. “Apis Cerana F. As an Important Natural Pollinator of Radish (Raphanus Sativus L.) under Mid-Hill Conditions of Himachal Pradesh”. International Journal of Bio-Resource and Stress Management, vol. 7, no. Oct, 5, Oct. 2016, pp. 1156-60, https://ojs.pphouse.org/index.php/IJBSM/article/view/1005.