Pa, Donni, Yeremias Pell, and Wenseslaus Bunganaen. 2018. “Pengaruh Perendaman NaOH Lima Persen Terhadap Kekuatan Tarik Serat Widuri”. LONTAR Jurnal Teknik Mesin Undana 1 (2), 59-65. https://doi.org/10.35508/ljtmu.v1i2.449.