HUISMAN, H. (1987). Regional and rural development planning series Nr.IX: Metode penelitian. F.Geografi-UGM.
Chicago Style aipamenaHUISMAN, Henk. Regional and Rural Development Planning Series Nr.IX: Metode Penelitian. Yogyakarta: F.Geografi-UGM, 1987.
MLA aipamenaHUISMAN, Henk. Regional and Rural Development Planning Series Nr.IX: Metode Penelitian. F.Geografi-UGM, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.