Variation and Imperfection Their Implications to the Concept of Language. J Univ Hum Dev [انترنت]. 5 يوليو، 2022 [وثق 30 سبتمبر، 2026];8(3):1-7. موجود في: https://journals.uhd.edu.iq/index.php/juhd/article/view/956