A. A. Al-Zahrani, H. 2018. Optimization conditions of alkaline protease production by Streptomyces sp.H1 isolated from red sea coastal region in submerged culture. International Journal of Basic and Applied Sciences. 7, 3 (Aug. 2018), 48–54. DOI:https://doi.org/10.14419/ijbas.v7i3.14519.