SURYADIPUTRA, W. (1992). Writing upper - intermediate: Study guide. LP3B UT and Oxford english.
Lua i Stíl Chicago (17ú heag.)SURYADIPUTRA, Wendy. Writing Upper - Intermediate: Study Guide. Jakarta: LP3B UT and Oxford english, 1992.
Lua MLA (9ú heag.)SURYADIPUTRA, Wendy. Writing Upper - Intermediate: Study Guide. LP3B UT and Oxford english, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.