Widodo, C. M. (1977). The employment experience of school leavers: A preliminary report : stage 1, from a longitudinal study of primary, lower and upper secondary school graduates. Office of Educational & Cultural Research and Development, Ministry of Ed. and Culture.

Widodo, C. M. The Employment Experience of School Leavers: A Preliminary Report : Stage 1, from a Longitudinal Study of Primary, Lower and Upper Secondary School Graduates. [Jakarta]: Office of Educational & Cultural Research and Development, Ministry of Ed. and Culture, 1977.

Widodo, C. M. The Employment Experience of School Leavers: A Preliminary Report : Stage 1, from a Longitudinal Study of Primary, Lower and Upper Secondary School Graduates. Office of Educational & Cultural Research and Development, Ministry of Ed. and Culture, 1977.