Wongsriwiwat, Worawan. “ELF-EGULATING APACITY N NGLISH OCABULARY EARNING F TUDENTS T ALAYA LONGKORN AJABHAT NIVERSITY NDER HE OYAL ATRONAGE”. Valaya Alongkorn Review 11, no. 2 (August 30, 2021): 31-47. ccessed December 5, 2021. https://so06.tci-thaijo.org/index.php/var/article/view/245917.