1. Mero JL. Mineral Resources of the Sea. Elsevier, Amsterdam, Netherlands. 1965;312.
2. Cruickshank MJ. Mineral resources potential of the continental margin. In: Burk CA, Drake CL, editors. The Geology of the continental margin. 1974;3:965–1000.
3. Rajamanickam GV. Hand Book of Placer Mineral Deposit. New Academic Publishers. New Delhi, India; 2001:3327.
4. Meyer K. Titanium and Zircon Placer prospect off Pulumoddai, Sri Lanka. Marine Mining. 1993;(2–3):139–166.
5. Siddiquie HN, Rajmanickam GV, Almeda F. Offshore Ilmenite Placers off Ratnagiri, Konkan Coast, Maharashtra, India. Marine Mining. 1979;2(1):91–118.