1. 1
    by Singh, Jaswant, 1938-
    Published 2006
    Book
  2. 2
    by Sidhu, Waheguru Pal Singh
    Published 2003
    Book
  3. 3
    by Kapur, Ashok
    Published 1996
    Book
  4. 4
  5. 5
    by Bradnock, Robert W.
    Published 1990
    Book
  6. 6
    Published 2016
    Oxford handbooks online
    Electronic eBook
  7. 7
    by Thakur, Ramesh Chandra, 1948-
    Published 1994
    Book