1. Japan Society of Powder and Powder Metallurgy, 1967. Handbook of Design for Mechanical Sintered Parts (in Japanese) Gijutsushoin, Tokyo.
2. Y. Ishimaru, 1971–75. ‘Recent review of mechanical sintered parts’ (in Japanese), Text of Lecture to Japan Soc. Mech. Engng., No. 341, 63.