Lafta, Fadhil, Department of Chemistry, College of Science, University of Diyala, Iraq.
Latif, Shaimia Qais, Department of Mathematics, College of Education for Pure Science, Ibn Al- Haitham, University of Baghdad.
Latif, Shurooq, Department of Biology, College of Science, Mustansiriyah University, IRAQ.
Laylani, Layla A. S., Department of Community Health, Kirkuk Technical Institute, Northern Technical University
Lazam, Hanan Sabah, Department of Mathematics, College of Education for Pure Science, Ibn Al- Haitham, University of Baghdad.
Lazem, Taha Hussein, Department of physics, Collage of science, Mustansiriyah University
Lefta, Ali S., Department of Physics College of Science, Mustansiriyah University, Baghdad, IRAQ.

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