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Ngamjit Pringam. (1998) Study of some lanthanide-doped lead zirconate-titanate ceramics . Mahidol University/Bangkok.
Ngamjit Pringam. Study of some lanthanide-doped lead zirconate-titanate ceramics. . Bangkok:Mahidol University, 1998.
Ngamjit Pringam. (1998) Study of some lanthanide-doped lead zirconate-titanate ceramics . Mahidol University/Bangkok.