K.  Wada, ?An electron microscope study of the formation of the periostracum of Pinctada martensii?, Journal of Electron Microscopy, vol. 17, p. 275, 1968.

K.  Wada, ?Cultured pearl and its structure?, in Proceedings of the Symposium on Mollusca held at Cochin from January 12 to 16, 1968, vol. 3, 3 vol., Mandapam Camp: Marine Biological Association of India, 1968, pp. 972-974.

V.  K. Rao, ?Pearl oysters of the Indian region?, in Proceedings of the Symposium on Mollusca held at Cochin from January 12 to 16, 1968, vol. 3, 3 vol., Mandapam Camp: Marine Biological Association of India, 1968, pp. 1017-1028.

V.  K. Rao, ?Pearl oysters of the Indian region?, in Proceedings of the Symposium on Mollusca held at Cochin from January 12 to 16, 1968, vol. 3, 3 vol., Mandapam Camp: Marine Biological Association of India, 1968, pp. 1017-1028.

K.  Wada, ?An electron microscope study of the formation of the periostracum of Pinctada martensii?, Journal of Electron Microscopy, vol. 17, p. 275, 1968.

K.  Wada, ?Cultured pearl and its structure?, in Proceedings of the Symposium on Mollusca held at Cochin from January 12 to 16, 1968, vol. 3, 3 vol., Mandapam Camp: Marine Biological Association of India, 1968, pp. 972-974.