1. Aalbersberg, W.G.L., Odense, R., Morrison, R.J., 1992. Baseline studies in Fanga’uta Lagoon, Tongatapu, Tonga. SPREP POL Progress Report March 1992, University of the South Pacific, Suva, 6 p
2. Chen, Z., Kookana, R., Naidu, R., Morrison, R.J., 1999. Pesticide residues in sediments and soil samples from the Kingdom of Tonga: a preliminary study. Report submitted to the Tonga Environmental Planning and Management Strengthening Project (TEMPP), Ministry of Lands, Survey and Natural Resources, Nuku’alofa, Tonga, 7 p
3. Marine Geochemistry;Chester,1990
4. Cowie, J.D., Searle, P.L., Widdowson, J.P., Orbell, G.E., 1991. Soils of Tongatapu, Kingdom of Tonga. DSIR Land Resources Scientific Report No. 21, DSIR, Lower Hutt, 58 p
5. Organochlorines in the coastal marine environment of Vanuatu and Tonga;Harrison;Marine Pollution Bulletin,1996