កំណែភាសាខ្មែរ ថ្នាក់ទី៩

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Introduction: The ninth grade Khmer version that our editorial board has designed to meet the needs of students and teachers.

The content of the lessons contained in this book, the author has prepared from easy to difficult level and in line with the new curriculum and in accordance with the scientific method.

Our editorial board awaits criticism from teachers and readers from all walks of life to help improve the quality of this book in response to national education goals.