[1]
Welan, C.J. 2023. PENERAPAN MODEL PROBLEM SOLVING LEARNING UNTUK MENINGKATKAN HASIL BELAJAR KOGNITIF SISWA KELAS XI PADA MATERI KONFLIK SOSIAL DI SALAH SATU SMA DI SURABAYA [THE IMPLEMENTATION OF PROBLEM-SOLVING LEARNING MODELS TO IMPROVE STUDENTS COGNITIVE ACHIEVEMENT ON CONFLICT OF GRADE XI SENIOR HIGH SCHOOL IN ONE OF THE HIGH SCHOOL IN SURABAYA]. Kumpulan Artikel Ilmiah Rumpun Ekonomi dan Ilmu Sosial. 3, 1 (Feb. 2023), 88–107. DOI:https://doi.org/10.19166/kairos.v3i1.6145.