-. Vocabulary and reading skills development. Pusat Pelatihan Bahasa Universitas Gadjah Mada.
Chicago Style (17th ed.) Citation-. Vocabulary and Reading Skills Development. Pusat Pelatihan Bahasa Universitas Gadjah Mada.
MLA (8th ed.) Citation-. Vocabulary and Reading Skills Development. Pusat Pelatihan Bahasa Universitas Gadjah Mada.
Warning: These citations may not always be 100% accurate.