Gupta C, . (2006). Indian Journal of Chemistry sec - A , Vol - 45. [s.l]: National Institute of Science CSIR.
Gupta C, . 2006. Indian Journal of Chemistry sec - A , Vol - 45. [s.l]: National Institute of Science CSIR.
Gupta C, . Indian Journal of Chemistry sec - A , Vol - 45. [s.l]: National Institute of Science CSIR. 2006.