Isworo, C. E. (2017). Practice Teachers Possible Solutions to Students Problems of Speaking during PPL in Junior High Schools. Universitas Sanata Dharma.
Lua i Stíl Chicago (17ú heag.)Isworo, Chezia Eufresia. Practice Teachers Possible Solutions to Students Problems of Speaking During PPL in Junior High Schools. Universitas Sanata Dharma, 2017.
Lua MLA (9ú heag.)Isworo, Chezia Eufresia. Practice Teachers Possible Solutions to Students Problems of Speaking During PPL in Junior High Schools. Universitas Sanata Dharma, 2017.
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