Gaya APA
EFFENDI, HEFNI. (2003).
TELAAH KUALITAS AIR .
YOGYAKARTA:
PT. KANISIUS YOGYAKARTA.
Gaya Chicago
EFFENDI, HEFNI.
TELAAH KUALITAS AIR.
YOGYAKARTA:
PT. KANISIUS YOGYAKARTA,
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BUKU_TP.
Gaya MLA
EFFENDI, HEFNI.
TELAAH KUALITAS AIR.
YOGYAKARTA:
PT. KANISIUS YOGYAKARTA,
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BUKU_TP.
Gaya Turabian
EFFENDI, HEFNI.
TELAAH KUALITAS AIR.
YOGYAKARTA:
PT. KANISIUS YOGYAKARTA,
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BUKU_TP.