AZIZ, M A, A B M ABUL KHAIR, and A B M SALAHUDDIN. 2013. “Intercropping of Upland Rice (Oryza Sativa) With Maize (Zea Mays)”. The Indian Journal of Agricultural Sciences 64 (8). https://epubs.icar.org.in/index.php/IJAgS/article/view/29402.