Average working hours of children, study and work, ages 7-14 (hours per week) - World, Angola, Switzerland, Guinea-Bissau, Congo, Rep., Hungary, United States, Ghana, Brazil, Virgin Islands (U.S.)
Understanding Children's Work, International Labour Organization ( ILO );
UN Children's Fund ( UNICEF ), note: Understanding Children's Work;
World Bank ( WB ), note: Understanding Children's Work
