Nijamudeen, M.S., Man Singh, Manoj Khanna, Balraj Singh, Ravender Singh, R.N. Pandey, and Murtaza Hasan. 2013. “N and K Fertilizer Application Rate under Drip-Fertigation for Greenhouse Grown Sweet Pepper”. Indian Journal of Horticulture 70 (01):54-59. https://journal.iahs.org.in/index.php/ijh/article/view/1436.