Philippines. Regional Development Council, Region XI. (1985). Updated Southern Mindanao region development plan, 1984-1987. RDC XI.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Regional Development Council, Region XI. Updated Southern Mindanao Region Development Plan, 1984-1987. Davao City: RDC XI, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. Regional Development Council, Region XI. Updated Southern Mindanao Region Development Plan, 1984-1987. RDC XI, 1985.
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