Salim, Hussein Ali. “Effect of Bio-Fertilizers Azotobacter Chroococcum and Pseudomonas Fluorescens on Growth of Broccoli (Brassica Oleracea L. Var. Italica)”. JOURNAL OF ADVANCES IN BIOLOGY 11 (August 30, 2018): 2236–2240. Accessed December 22, 2024. https://rajpub.com/index.php/jab/article/view/7590.