Alaa Ahmed Abdulwahed, Ali Hussein Hasan Al-Naily, Mazin Thamer Shnaef,, University of Al-Qadisiyah /College of Education

• Opción Vol. 35 (2019): Edición Especial Nro. 20 - Artículos
  A Study of the Concepts of Waste in the Textbooks of Sciences
  Resumen  PDF