Collaboration between FMIPA UNNES Indonesia with School of Science, Walailak University Thailand”Friday, August 13th, 2021. Thanks KONSUL RI in Thailand, H.E. Fachry Sulaiman, Dean of Faculty Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia Dr. Sugianto, Dr. Arif Widiyatmoko and Dr. Rifa Atunnisa for this fruitful meeting. Thanks Director of CIA, Asst Prof. Dr. Patnarin and Nan for organizing this. Thanks Associate Dean Asst Prof Jantira, Assoc. Prof. Dr. Krisanadej and Assoc. Prof. Dr. Chatchai for joining this and being the committee for MOA with UNNES.