Cita APA

University of the Philippines Research Organization for Better Education (UPROBE). (1990). Educational research: Problem conceptualization and research designs. Aljun Printing Press.

Citación estilo Chicago

University of the Philippines Research Organization for Better Education (UPROBE). Educational Research: Problem Conceptualization and Research Designs. Manila: Aljun Printing Press, 1990.

Cita MLA

University of the Philippines Research Organization for Better Education (UPROBE). Educational Research: Problem Conceptualization and Research Designs. Aljun Printing Press, 1990.