വിശ്വവിജ്ഞാനകോശം (viswavijnanakosam)
- Kottayam SPSS 1970
Vol.1.1000p.
Vol.2.1004p.
Vol.3.1000p.
Vol.4.1000p.
Vol.6.1000p.
Vol.7.1006p.
Vol.8.1004p.
Vol.9.1000p.
Vol.10.964p.with index
Encyclopaedia- Malayalam
M030 / VIS
Vol.1.1000p.
Vol.2.1004p.
Vol.3.1000p.
Vol.4.1000p.
Vol.6.1000p.
Vol.7.1006p.
Vol.8.1004p.
Vol.9.1000p.
Vol.10.964p.with index
Encyclopaedia- Malayalam
M030 / VIS