@article{ author = {Shafizadeh, Hamid, Akbari, Mahbobeh}, title = {Evaluation the happiness and mirth in elementary schools in the view of teachers and managers of the Grammar city}, journal = {Journal of Educational Psychology Skills}, year = {2015}, volume = {5}, issue = {4}, pages = {39-51}, doi = {}, url = {https://sanad.iau.ir/fa/Article/953631} }