Mahdinia,S. M. and Nikravesh,S. (2002). Investigating the Amount of Nitrate Contamination of Drinking Water Distribution Network of Damghan City in the Spring of 2013. Journal of Water and Wastewater; Ab va Fazilab (in persian), 13(3), 60-61. doi: 10.22093/wwj.2002.176063

Mahdinia,S. M. , and Nikravesh,S. . "Investigating the Amount of Nitrate Contamination of Drinking Water Distribution Network of Damghan City in the Spring of 2013", Journal of Water and Wastewater; Ab va Fazilab (in persian), 13, 3, 2002, 60-61. doi: 10.22093/wwj.2002.176063

Mahdinia S. M., Nikravesh S. (2002). 'Investigating the Amount of Nitrate Contamination of Drinking Water Distribution Network of Damghan City in the Spring of 2013', Journal of Water and Wastewater; Ab va Fazilab (in persian), 13(3), pp. 60-61. doi: 10.22093/wwj.2002.176063

S. M. Mahdinia and S. Nikravesh, "Investigating the Amount of Nitrate Contamination of Drinking Water Distribution Network of Damghan City in the Spring of 2013," Journal of Water and Wastewater; Ab va Fazilab (in persian), 13 3 (2002): 60-61, doi: 10.22093/wwj.2002.176063

Mahdinia S. M., Nikravesh S. Investigating the Amount of Nitrate Contamination of Drinking Water Distribution Network of Damghan City in the Spring of 2013. Journal of Water and Wastewater; Ab va Fazilab (in persian), 2002; 13(3): 60-61. doi: 10.22093/wwj.2002.176063