@article{
  author = {خوئی‌نژاد, غلامرضا, رجایی, علیرضا, محب‌راد, تکتم},
  title = {To Investigate Mathematical Cognitive Abilities (Spatial and Numerous) and Their CorrelationWith Educational Development, Mental Age and Gender},
  journal = {Knowledge & Research in Applied Psychology},
  year = {2008},
  volume = {10},
  number = {34},
  pages = {75-92},
  doi = {}
}