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3. 3) The Japan Institute of Materials: KinzokuBinran 5th edition, (Maruzen, Tokyo, 1990) pp. 595.
4. 4) K. Monma: Tekkouzairyougaku, (Jikkyo shuppan, Tokyo, 1992) pp. 524.
5. 5) R. S. Roth, T. Negas and L. P. Cook: PHASE DIAGRAMS FOR CERAMISTS VOLUME IV, (THE AMERICAN CERAMIC SOCIETY, Columbus, 1981) pp. 87.