Adnan Abdel-Rahman, Z., Hussein Habib Hamed and Farah Kahtan Khalaf 2018. Optimization of Sodium Bicarbonate Production Using Response Surface Methodology (RSM). Diyala Journal of Engineering Sciences . 11, 3 (Sep. 2018), 22–28. DOI:https://doi.org/10.24237/djes.2018.11304.