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), pp. 156–161. doi: 10.22219/JTIUMM.Vol12.No2.156-161.