Nacira LEBBAR, Mehdi KHOULOUD, Essaid BILAL, Driss DHIBA, Mohammed EL ASRI, Abderrahime MOUSTAOUI, Rachid BOULIF and Elmouloudi SABBAR 2018. Statistical Study and Modeling of the Effect of Phosphoric Acid Impurities on the Physical Quality of Ammonium Phosphate Determined from the Production Data Using Artificial Neural Network. International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE. 4, 10 (Oct. 2018), 45–55. DOI:https://doi.org/10.31695/IJASRE.2018.32906.