Sinotech Engineering Consultants. (1985). Feasibility study WPP/SKP XIX c/C Nanga Mau: Final report. Sinotech Engineering Consultants, Inc. in association with P.T. Nasuma Putra Consulting Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSinotech Engineering Consultants. Feasibility Study WPP/SKP XIX C/C Nanga Mau: Final Report. [Pontianak?]: Sinotech Engineering Consultants, Inc. in association with P.T. Nasuma Putra Consulting Engineers, 1985.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSinotech Engineering Consultants. Feasibility Study WPP/SKP XIX C/C Nanga Mau: Final Report. Sinotech Engineering Consultants, Inc. in association with P.T. Nasuma Putra Consulting Engineers, 1985.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.