Year: 1991, Volume: 57, Issue: 4, July-August
p.194-194
Short Communication
VD Tiwari, S Biswas, JC Sharma, CV Ramasastry
p.195-195
Short Communication
V Laxmi Nair, Maria Chacko
p.196-197
Short Communication
Ambujam Nandkumar, CR Srinivas, Praveen Kumar
p.198-198
p.203-203