Hambly, K. (1989). How to improve your confidence. Sudha.
Chicago-čujuhus (17. p.)Hambly, Kenneth. How to Improve Your Confidence. New Delhi: Sudha, 1989.
MLA-čujuhus (9. p.)Hambly, Kenneth. How to Improve Your Confidence. Sudha, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.