Westra, I. P. (1991). Pedoman penulisan skripsi berdasarkan penelitian empiris dilingkungan. Airlangga University Press.
Chicago Style (17th ed.) CitationWestra, IGK Paridjata. Pedoman Penulisan Skripsi Berdasarkan Penelitian Empiris Dilingkungan. Airlangga University Press, 1991.
MLA (8th ed.) CitationWestra, IGK Paridjata. Pedoman Penulisan Skripsi Berdasarkan Penelitian Empiris Dilingkungan. Airlangga University Press, 1991.
Warning: These citations may not always be 100% accurate.