Morley, D. A. (1978). Study leave report 23rd August, 1977 to 4th July, 1978. Dept. of Civil Engineering, Papua New Guinea University of Technology.
Lua i Stíl Chicago (17ú heag.)Morley, Donald Albert. Study Leave Report 23rd August, 1977 to 4th July, 1978. [Lae: Dept. of Civil Engineering, Papua New Guinea University of Technology, 1978.
Lua MLA (9ú heag.)Morley, Donald Albert. Study Leave Report 23rd August, 1977 to 4th July, 1978. Dept. of Civil Engineering, Papua New Guinea University of Technology, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.