1. Crystal formation in shell calcification;Wada;Hohseki-gakkai-shi,1978
2. Studies on the state of minor elements and the mineralization patterns of various cultured pearls by means of electron microprobe analysis, microradiography and colour television display;Wada;Bull. Natl. Pearl Res. Lab.,1977
3. Biomineralogy and pearl culture — 1;Wada;Hohseki-gakkai-shi,1974
4. Biomineralogy and pearl culture — 2;Wada;Hohseki-gakkai-shi,1975
5. Biomineralogy and pearl culture — 3;Wada;Hohseki-gakkai-shi,1975