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Cengage Learning, 2017
Buku Teks
Routledge, 2003
Buku Teks
Walton, Richard E.
McGraw-Hill, 1965
Buku Teks
Galjart, B.F.
Centre for Agricultural Publishing and Documentation, 1968
Buku Teks
Allan B. I. Bernardo; Cecilia Gastardo- Conaco; Maria Emma Concepcion Liwag, editor
Kyoyook-Kwaha-Sa Publishing Company, 2007
Buku Teks