UPEJ (Unnes Physics Education Journal) | Universitas Negeri Semarang. Cambridge University Press.
Cita Chicago Style (17a ed.)UPEJ (Unnes Physics Education Journal) | Universitas Negeri Semarang. Cambridge University Press.
Cita MLA (8a ed.)UPEJ (Unnes Physics Education Journal) | Universitas Negeri Semarang. Cambridge University Press.
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