Simarmata, Gayus, Universitas HKBP Nommensen Pematangsiantar, Indonesia

• PENDIPA Journal of Science Education Vol. 7 No. 2 (2023): June - Articles
  Motivasi dalam Pembelajaran Matematika Siswa di SMK Teladan Tanah Jawa
  Abstract  PDF
• PENDIPA Journal of Science Education Vol. 8 No. 1 (2024): February - Articles
  Analisis Bahan Ajar Kimia SMA/MA Berdasarkan Pendekatan Science, Technology, Engineering and Mathematic (STEM)
  Abstract  PDF