Widyastuti, W., Yulian FF, F., Rochiem, R. and Purwaningsih, H. 2012. Synthesis Of Nanoparticle Barium Hex Aferrite By Sol Gel Auto Combutio. Jurnal Teknik Industri. 12, 2 (Feb. 2012), 156–161. DOI:https://doi.org/10.22219/JTIUMM.Vol12.No2.156-161.