@article{
  author = {Mikaeillou, Golam Hossein, Entezar Foumani, Golam Hossein},
  title = {A Study of the relationship between empirical sciences high-school third graders` after school activities (hours dedicated to doing assignment, studying test-books, supplementary books, participating in tutorial math classes) with math academic achievement},
  journal = {Journal of Instruction and Evaluation},
  year = {2012},
  volume = {5},
  number = {19},
  pages = {13-25},
  doi = {}
}