APA Format
Siagian, Sondang P.
. (1988). Fungsi-fungsi manajerial. Jakarta : Bina Aksara
MLA Format
Siagian, Sondang P.
. Fungsi-fungsi manajerial. Jakarta : Bina Aksara, 1988
Australian/Harvard Format
Siagian, Sondang P.
. 1988. Fungsi-fungsi manajerial. Bina Aksara, Jakarta
Warning: These citations may not always be 100% accurate.