Alexander Barus, Ternala, Faculty of mathematics and natural science, Universitas Sumatera Utara, Medan, Indonesia, Indonesia

• ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat - Articles
  Turning organic waste into organic fertilizers in the village Namo Bintang Deli Serdang regency
  Abstract  PDF