Widodo, C. (1978). The Employment experience of school leavers: An interim report on a longitudinal study of primary lower and uppor secondary school graduates in Indonesia. Education Finance Projects, Offices of Education and Cultural Research and Development, Department of Education and Culture, Republic of Indonesia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Widodo, C.M. The Employment Experience of School Leavers: An Interim Report on a Longitudinal Study of Primary Lower and Uppor Secondary School Graduates in Indonesia. [Jakart?]: Education Finance Projects, Offices of Education and Cultural Research and Development, Department of Education and Culture, Republic of Indonesia, 1978.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Widodo, C.M. The Employment Experience of School Leavers: An Interim Report on a Longitudinal Study of Primary Lower and Uppor Secondary School Graduates in Indonesia. Education Finance Projects, Offices of Education and Cultural Research and Development, Department of Education and Culture, Republic of Indonesia, 1978.