Naibaho, Holand. 2025. “IMPROVING THE LEARNING OUTCOMES OF CLASS X TKJ SMK PERSIAPAN PEMATANG SIANTAR STUDENTS IN BASIC PROGRAMMING SUBJECTS USING A PROBLEM-BASED LEARNING MODEL”. Edelweiss : Journal Of Innovation In Educational Research 3 (1). https://doi.org/10.62462/edelweiss.v3i1.78.