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1مؤتمر
المؤلفون: Abdullah, Rusli, Panjaitan, Joel
المصدر: AIP Conference Proceedings; 2023, Vol. 2431 Issue 1, p1-8, 8p
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2دورية
المؤلفون: Limbong, Tonni, Simarmata, Janner, Tambunan, ARS, Siagian, Parulian, Panjaitan, Joel, Siagian, Lestina, Sitorus, Erbin, Frans, Marvin, Hutabarat, Sakti, Suganda, Abba, and, Girsang, Lumbanbatu, Katen
المصدر: IOP Conference Series: Materials Science and Engineering; September 2018, Vol. 420 Issue: 1 p012094-012094, 1p