Talib, Johari. 2009. «Effects of Parental Work Conditions on Children’ School Achievement A Study of Dual- Earner Families in Malaysia». ACTIVIDAD FÍSICA Y CIENCIAS / PHYSICAL ACTIVITY AND SCIENCE 1 (1):43-73. http://revistas.upel.edu.ve/index.php/actividadfisicayciencias/article/view/989.