Volume 13, Issue 29, December 2021, Pages 207-228
https://doi.org/10.22089/smj.2021.11497.1540
Peyman Aghaie; Ali Abbasi; Amir Letafatkar
Volume 10, Issue 24, February 2019, Pages 29-42
https://doi.org/10.22089/smj.2018.4666.1268
Fatemeh Mohamadpour; Amir Letafatkar; fereshteh eftekhari
Volume 6, Issue 15, June 2014, Pages 71-88
Maryam Nazarzadeh Deh-bozorgi; Amir Letafatkar; Reza Sabounchi