Gaya APA
KUSUMASTUTI, T, A., SEMBIRING, S. (2016).
Sistem pertanian terpadu: .
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
KUSUMASTUTI, Tri, Anggraeni., SEMBIRING, Sarim.
"Sistem pertanian terpadu:".
Yogyakarta:
Gadjah Mada University Press,
2016.
Buku.