APA
(1992). V Guide For P.S.C.Malayalam. : V.Publishers Kottayam.
Chicago
1992. V Guide For P.S.C.Malayalam. : V.Publishers Kottayam.
Harvard
(1992). V Guide For P.S.C.Malayalam. : V.Publishers Kottayam.
MLA
V Guide For P.S.C.Malayalam. : V.Publishers Kottayam. 1992.