Ade, S., & Wiyogo. (2020). IMPLEMENTASI MODEL PEMBELAJARAN PROBLEM SOLVING PADA MATA PELAJARAN TEKNIK PENGELASAN METAL INERT GAS DI SMK NEGERI 1 PALANGKA RAYA. Steam Engineering, 2(1), 56–64. https://doi.org/10.37304/jptm.v2i1.495