Winkel, W. (1987). Bimbingan dan konseling di sekolah menengah / WS winkel. Gramedia.
Chicago Style (17th ed.) CitationWinkel, WS. Bimbingan Dan Konseling Di Sekolah Menengah / WS Winkel. Gramedia, 1987.
MLA (8th ed.) CitationWinkel, WS. Bimbingan Dan Konseling Di Sekolah Menengah / WS Winkel. Gramedia, 1987.
Warning: These citations may not always be 100% accurate.