Mate, J. (1991). Why a pit latrine: A manual for extension workers and latrine builders. Piped Supplies for Small Communities (PSSC) Project Zambia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMate, Joseph. Why a Pit Latrine: A Manual for Extension Workers and Latrine Builders. Zambia: Piped Supplies for Small Communities (PSSC) Project Zambia, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMate, Joseph. Why a Pit Latrine: A Manual for Extension Workers and Latrine Builders. Piped Supplies for Small Communities (PSSC) Project Zambia, 1991.
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