Lama, Aditya, et al. “Horizontal Diversification Comprising Differential Agri-Horticultural and Livestock Production in Hilly and Terai Region of West Bengal”. International Journal of Bio-Resource and Stress Management, vol. 9, no. Dec, 6, Nov. 2018, pp. 673-81, https://ojs.pphouse.org/index.php/IJBSM/article/view/3768.