Pasaribu N, Riyani M, Ayudia I. Development of a Plickers-Based Formative Test for Grade III IPAS Learning at SD Negeri 2 Langsa. Socratika [Internet]. 2026 Oct. 5 [cited 2026 Oct. 15];3(3):567-82. Available from: https://ssed.or.id/socratika/article/view/831