Whitsitt, M. E. (1988). Feasibility study manual for cooperatives. Cooperative Foundation Philippines.
Chicago Style (17. basım) AtıfWhitsitt, Mac E. Feasibility Study Manual for Cooperatives. Quezon City: Cooperative Foundation Philippines, 1988.
MLA (9th ed.) AtıfWhitsitt, Mac E. Feasibility Study Manual for Cooperatives. Cooperative Foundation Philippines, 1988.
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