Leong, T. S., & Company, B. S. P. (1990). A second environmental study of the macrobenthos in the nearshore marine region of Sungai Lumut, Sungai Bera and Sungai Seria, Brunei Darussalam. Seria, Brunei Darussalam : Brunei Shell Petroleum.
Chicago-viite (17. p.)Leong, Tak Seng, ja Brunei Shell Petroleum Company. A Second Environmental Study of the Macrobenthos in the Nearshore Marine Region of Sungai Lumut, Sungai Bera and Sungai Seria, Brunei Darussalam. Seria, Brunei Darussalam : Brunei Shell Petroleum, 1990.
MLA-viite (9. p.)Leong, Tak Seng, ja Brunei Shell Petroleum Company. A Second Environmental Study of the Macrobenthos in the Nearshore Marine Region of Sungai Lumut, Sungai Bera and Sungai Seria, Brunei Darussalam. Seria, Brunei Darussalam : Brunei Shell Petroleum, 1990.