Vishnu-Mittre, and H.P. Gupta. “Pollen Morphological Studies of Some Primitive Varieties of Maize (Zea Mays L.) With Remarks on the History of Maize in India”. Journal of Palaeosciences 15, no. (1-3) (December 31, 1966): 176–184. Accessed May 9, 2024. https://jpsonline.co.in/index.php/jop/article/view/762.