DANUSAPUTRA, S. M. (1981). Environmental Education And Training (supporting Programme For The Development Of Environmental Law). Binacipta Publishing.
Lua i Stíl Chicago (17ú heag.)DANUSAPUTRA, ST. Munadjat. Environmental Education And Training (supporting Programme For The Development Of Environmental Law). Binacipta Publishing, 1981.
Lua MLA (8ú heag.)DANUSAPUTRA, ST. Munadjat. Environmental Education And Training (supporting Programme For The Development Of Environmental Law). Binacipta Publishing, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.