na INLIS000000000000259 20180922033545 0010-0918000113 Prestasi Gemilang Anak Bangsa : Seri Olimpiade Fisika / Drs. Valentinus Barus Drs. Valentinus Barus - ii, 62 hlm. : ilus. ; 21 cm. Jakarta : PT Lestari Kiranatama, 2010 925 925 VAL p 978-602-8982-14-6 Biografi Ilmuwan 01068/H/2018 01069/H/2018 01070/H/2018 01071/H/2018 01072/H/2018