Gaya APA

Wibisono, W. (1999). Proceeding Of International ConFErence On Occupational Health And SaFEty In The Informal Sector . Yogyakarta: Wolter Kluwer.

Gaya MLA

Wibisono, Widyastuti. "Proceeding Of International ConFErence On Occupational Health And SaFEty In The Informal Sector". Yogyakarta: Wolter Kluwer, 1999. Text.