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Guinto, Ricardo S., Abalos, Rodolfo M., Cellona, Roland V., Fajardo, Tranquilino T.
Sasakawa Memorial Health Foundation, 1983
Buku Referensi
Ross, Michael H.
Harper & Row, 1985
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R. Heru Prasetyo
Airlangga University Press, 2003
Buku Teks SO
by Nicholas Katsilambros ... [and others]
John Wiley & Sons, 2003
Buku Referensi