TI - An MS Excel Tool for Parameter Estimation by Multivariate Nonlinear Regression in Environmental Engineering Education AU - DEMİR, S. AU - KARADENİZ, A. AU - CİVELEK YÖRÜKLÜ, H. AU - MANAV DEMİR, N. SO - Sigma Journal of Engineering and Natural Sciences 2017;35:265-273. DO -