Ahmed, S. (1985). Motor vehicle utilization survey. National Transport Research Centre.
Lua i Stíl Chicago (17ú heag.)Ahmed, Shamim. Motor Vehicle Utilization Survey. Islamabad: National Transport Research Centre, 1985.
Lua MLA (8ú heag.)Ahmed, Shamim. Motor Vehicle Utilization Survey. National Transport Research Centre, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.