Praharaj, C. S., Paul Khurana, S., & Lal, S. S. (2013). FERTILIZER ECONOMY IN RELATION TO POTATO BASED CROPPING SYSTEMS IN IRRIGATED SOUTH BIHAR ALLUVIAL PLAINS. Potato Journal, 33(1 - 2). https://epubs.icar.org.in/index.php/PotatoJ/article/view/33279