Sittiwongsa K, Nopparat Rattawong. Development Of English Learning Achievement Using Flashcards of Grade 6 Students at Ban Pa Hung School. JLS [internet]. 2024 Sep. 8 [cited 2026 Oct. 3];2(3):14-20. available from: https://so13.tci-thaijo.org/index.php/jls/article/view/795