;Das, Ramesh Chandra (Vidyasagar University, West Bengal, India)
(4)
;Das, Ramesh Chandra (Vidyasagar University, West Bengal, India)
(2)
Das, Ramesh Chandra (Vidyasagar University, West Bengal, India)
(2)
Dibyendu Banerjee,Ramesh Chandra (Vidyasagar University Das West Bengal India)
(2)
;Das, Ramesh Chandra (Vidyasagar University, India)
(2)
;Das, Ramesh Chandra (Vidyasagar University West Bengal India)
(1)