SAHULATA, D. (1988). Panduan penggunaan buku an introduction to sounds and ssound systems of english. Depdikbud.
Lua i Stíl Chicago (17ú heag.)SAHULATA, Daniel. Panduan Penggunaan Buku an Introduction to Sounds and Ssound Systems of English. Jakarta: Depdikbud, 1988.
Lua MLA (9ú heag.)SAHULATA, Daniel. Panduan Penggunaan Buku an Introduction to Sounds and Ssound Systems of English. Depdikbud, 1988.
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