Soltanian, Nahid, Ghapanchi, Zargham, Rezaei, Saeed, Pishghadam, Reza. (1397). Quantifying Investment in Language Learning: Model and Questionnaire Development and Validation in the Iranian Context. سامانه مدیریت نشریات علمی, 7(1), 25-56. doi: 10.22054/ilt.2019.33374.302
Nahid Soltanian; Zargham Ghapanchi; Saeed Rezaei; Reza Pishghadam. "Quantifying Investment in Language Learning: Model and Questionnaire Development and Validation in the Iranian Context". سامانه مدیریت نشریات علمی, 7, 1, 1397, 25-56. doi: 10.22054/ilt.2019.33374.302
Soltanian, Nahid, Ghapanchi, Zargham, Rezaei, Saeed, Pishghadam, Reza. (1397). 'Quantifying Investment in Language Learning: Model and Questionnaire Development and Validation in the Iranian Context', سامانه مدیریت نشریات علمی, 7(1), pp. 25-56. doi: 10.22054/ilt.2019.33374.302
Soltanian, Nahid, Ghapanchi, Zargham, Rezaei, Saeed, Pishghadam, Reza. Quantifying Investment in Language Learning: Model and Questionnaire Development and Validation in the Iranian Context. سامانه مدیریت نشریات علمی, 1397; 7(1): 25-56. doi: 10.22054/ilt.2019.33374.302