(1987). Active non-violence in action: The Philippine experience. World Council for Curriculum and Instruction Philippines Chapter.
Chicago-viite (17. p.)Active Non-violence in Action: The Philippine Experience. Manila: World Council for Curriculum and Instruction Philippines Chapter, 1987.
MLA-viite (9. p.)Active Non-violence in Action: The Philippine Experience. World Council for Curriculum and Instruction Philippines Chapter, 1987.
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