editor by Charles S. Lenth
Joses-Bases , 1991
Buku Teks
Brick, Michael
Institute of Higher Education, 1969
Buku Teks
Taiwan : National Cheng Kung University, 2006,
Majalah, Jurnal, Buletin
McGraw-Hill, 1974
Buku Teks
John C. Smart
Springer, 2012
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