1 Jaffe B. Cook W R Jr, Jaffe H. Piezoelectric ceramics. Academic Press, 1971: 135
2 Burfort J C, Toyler G W. Poriar dielectrics and their applications. University of California Press, 1979:250
3 Phase Diagrams for Ceramists 1975 Supplement. Edited and Published by the American Ceramic Society, 1975:25
4 Phase Diagrams for Ceramists. Edited by the American Ceramic Society, 1987:43
5 Handbook of Chemistry and Physics. 55th Edition, Published by CRC Press, 1974~1975:B98
6 Revised by Sax N Irving, Lewis Richard J..The Hawley's Condensed Chemical Dictionary, Eleventh Edition, New York: Edited by VNR, 1987:280bystolic copay card click bystolic coupon voucher
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