Salim, H.A. 2018. Effect of Bio-Fertilizers Azotobacter Chroococcum and Pseudomonas Fluorescens on Growth of Broccoli (Brassica Oleracea L. Var. Italica). JOURNAL OF ADVANCES IN BIOLOGY. 11, (Aug. 2018), 2236–2240. DOI:https://doi.org/10.24297/jab.v11i1.7590.