Pramudya, Yudhiakto, Program Studi Magister Pendidikan Fisika Universitas Ahmad Dahlan, Jalan Pramuka 42, Sidikan, Umbulharjo, Yogyakarta 55161, Indonesia
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Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series - Articles
The moon phases influence on the beginning of astronomical dawn determination in Yogyakarta
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