Tirtayasa, Satria, Universitas Muhammadiyah Sumatera Utara

• Vol 2, No 1 (2021) - Articles
  Influence of Education of Entrepreneurship, Self Efficacy, Locus of Control and Entrepreneurs Characters of Enterprises (The Study Case Is All the Students of Private University in Medan)
  Abstract  PDF
• INSIS 3 (February 2022) - Articles
  ANALYSIS OF FACTORS AFFECTING THE PURCHASE DECISION
  Abstract  PDF