Gaya APA
Arief, A.
().
Keragaman hayati
.
Mojokerto:
PPLH Seloliman Yayasan Kehati.
Gaya MLA
Arief, Achmad.
"Keragaman hayati".
Mojokerto:
PPLH Seloliman Yayasan Kehati,
.
300_Social Sciences.