Aissa, Abdallah, Abdelazeem Abdeen, and Mustafa Abualreish. 2014. “Qualitative and Quantitative Analysis of Phosphate Rock from Hazm Al-Jalamid Area, Northern Saudi Arabia”. International Journal of Basic and Applied Sciences 3 (3): 190-98. https://doi.org/10.14419/ijbas.v3i3.2755.