SIMANJUNTAK, Mariati Purnama. SIFAT MEKANIK KOMPOSIT TERHADAP FRAKSI VOLUME SERAT ECENG GONDOK BERMATRIKS POLYESTER. EINSTEIN (e-Journal), [S. l.], v. 1, n. 2, 2013. DOI: 10.24114/einstein.v1i2.5062. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/5062. Acesso em: 13 oct. 2025.