2Department of education, science and training, Australian Government, "Training Package Development Handbook", October 2005.
3Steven R. Aragon et al. (2004), ANALYSIS OF THE INTEGRATION OF SKILL STANDARDS INTO COMMUNITY COLLEGE CURRICULUM, National Research Center for Career and Technical Education.
4Ivan Charner (1996),Study of School-to-work Initiatives. Office of Educational Research and Improvement, U.S. Department of Education
