Arshad, Imran. 2017. “Effect of Different Levels of Water Soluble NPK(20-20-20) Fertilizer on the Growth and Yield of White Radish (Raphanus Sativus L.)”. PSM Biological Research 2 (2), 74-78. https://journals.psmpublishers.org/index.php/biolres/article/view/63.