Lubis, Debby Mirani Lubis, Universitas Muhammadiyah Sumatera Utara, Indonesia

• Vol 1, No 2 (2019): Jurnal Ihsan (Oktober) - Articles
  EFFORTS TO DEVELOP TEACHERS BECOME A HEALTH CADRES WHO HAS KNOWLEDGE OF THE BENEFITS OF VITAMIN D FOR THE BODY IMMUNITY SYSTEM
  Abstract  PDF

Online ISSN:2685-9882