Wulansari, R. and Nabawi, R. (2021) “Efforts to Improve Problem Solving Skills and Critical Thinking Skills Through Problem-Based Integrated Computer Assisted Instruction (CAI) in Vocational Education”, Jurnal Pendidikan Teknologi Kejuruan, 4(4), pp. 111-117. doi: 10.24036/jptk.v4i2.21123.