Rahman, L., & Maharani, D. K. (2013). KAJIAN KARAKTERISASI SPEKTROFOTOMETRI INFRA MERAH DAN DIFRAKSI SINAR X KATALIS OKSIDA LOGAM Cu/Ni/?-Al2O3 (INFRA RED SPECTROPHOTOMETRY AND X-RAYS DIFRACTION STUDY OF Cu/Ni/?-Al2O3 CATALYST). Unesa Journal of Chemistry, 2(3). https://doi.org/10.26740/ujc.v2n3.p%p