Rikken, G. R. (1994). People-oriented development workers: Case studies in cooperative management. Asian Social Institute in cooperation with MISEREOR.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRikken, Gerard R. People-oriented Development Workers: Case Studies in Cooperative Management. Manila: Asian Social Institute in cooperation with MISEREOR, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRikken, Gerard R. People-oriented Development Workers: Case Studies in Cooperative Management. Asian Social Institute in cooperation with MISEREOR, 1994.
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