Simatupang, L. R. (1998). Foundation of Behavioral Research = Asas-asas Penelitian Behavioral. Gadjah Mada University Press.
シカゴスタイル引用形Simatupang, Landung R. Foundation of Behavioral Research = Asas-asas Penelitian Behavioral. Gadjah Mada University Press, 1998.
MLA引用形式Simatupang, Landung R. Foundation of Behavioral Research = Asas-asas Penelitian Behavioral. Gadjah Mada University Press, 1998.
警告: この引用は必ずしも正確ではありません.