Annisa Yumna; Agus Setyo Budi; Upik Rahma Fitri. PRELIMINARY STUDY FEASIBILITY OF FORMATIVE ASSESSMENT INSTRUMENTS FOR MEASUREMENT MATERIAL IN GRADE X BASED ON THE MERDEKA CURRICULUM: STUDI PENDAHULUAN KELAYAKAN INSTRUMEN ASESMEN FORMATIF MATERI PENGUKURAN KELAS X BERBASIS KURIKULUM MERDEKA. PROSIDING SNF 2025, 13, PF-6.