Drummond, A. (1988). Typing first course (5th ed.). McGraw-Hill Book Company.
Chicago-čujuhus (17. p.)Drummond, Archie. Typing First Course. 5th ed. London: McGraw-Hill Book Company, 1988.
MLA-čujuhus (9. p.)Drummond, Archie. Typing First Course. 5th ed. McGraw-Hill Book Company, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.