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The International Journal of the Royal Society of Thailand
Volume XV-2023

Foreword

The President of the Royal Society of Thailand

The International Journal of the Royal Society of Thailand

(IJRSTh) is one of the official journals of the Society served as
an international forum for the communication and sharing of

knowledge from all major disciplines. I would like to congratulate
the Journal on publishing the 2023 volume and convey my
sincere appreciation to all contributing authors from

the Royal Society of Thailand and other international organizations, and to the
Journal editors for their diligence, dedication, and expertise. I am confident that
the knowledge shared through this publication will gain more appreciation from the

public and lead to further development of science and art in the region and beyond.

The Royal Society of Thailand is recognized as a leader in the field of academic
excellence consisting of 3 institutions: Academy of Science, Academy of Moral and

Political Sciences and Academy of Arts. The Royal Society of Thailand is the national
learned institution established by King RAMA VII in 1926. The Society is responsible
for the academic work of the government and is a Thai language reference center and

providing intellectual resources for research, reference and education services.
The Royal Society of Thailand routinely publishes academic-specific dictionary text-

books of all disciplines and issued regular journals both in Thai and English.

Professor Emeritus Surapol Issaragrisil, FRS(T)

President of the Royal Society of Thailand

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