Neto, L. , Filho, V. , Nunes, J. , Bergamo, G.. "Application of the Least Squares Method in the Adjustment of Chlorodifluoromethane (HCFC-142b) Regression Models ". World Academy of Science, Engineering and Technology, Open Science Index 148, International Journal of Biological and Ecological Engineering (2019), 13(4), 91 - 94.