Casel, J. Q. (1991). Employment of organized labor thru the Resident Labor Training Schools: A review of Lec-Alec experience. Research and Publications Program, School of Labor and Industrial Relations, University of the Philippines.

Casel, Julie Q. Employment of Organized Labor Thru the Resident Labor Training Schools: A Review of Lec-Alec Experience. Quezon City: Research and Publications Program, School of Labor and Industrial Relations, University of the Philippines, 1991.

Casel, Julie Q. Employment of Organized Labor Thru the Resident Labor Training Schools: A Review of Lec-Alec Experience. Research and Publications Program, School of Labor and Industrial Relations, University of the Philippines, 1991.