Drug stability: priciples and practices
edited by Jens T. Carstensen, C.T. Rhodes
Marcel Dekker, 2000
 Buku Teks SO
Marshal, Alfred
Priciples of economics An introductory volume
Macmilen and Co., 1930
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London, Chales. E
Transportation; priciples, practices and problems
New York, Sloane, 1951
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Meffe, Gary K.
Priciples of conservation biology
Sinauer Associates, 1997
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Fordham, R
Priciples of vegetables crop production
Collins, 1985
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