Toekidjo Martoredjo
Andi, 1992
Buku Teks SO
Agrios, George N.
Gadjah Mada University Press, 1996
Buku Teks SO
Baharuddin Salleh
Dewan Bahasa dan Pustaka Kementerian Pendidikan Malaysia, 1988
Buku Teks SO
edited by R.S. Singh ... [et al.]
Oxford & IBH, 1988
Buku Teks SO
Agrios, George N.
Academic Press, 1988
Buku Teks SO