Meisy Salsa Bella, Isjoni, and Asril, “THE DEVELOPMENT OF A HISTORY E-BOOK ON THE TOPIC OF THE ARRIVAL AND SPREAD OF ISLAM IN INDONESIA BASED ON LOCAL HISTORY (ROKAN ROYAL PALACE) TO IMPROVE LEARNING OUTCOMES OF GRADE X STUDENTS AT SMAN 1 UJUNGBATU: Pengembangan E-Book Sejarah Materi Masuk Dan Berkembangnya Islam di Indonesia Berbasis Sejarah Lokal (Istana Raja Rokan) Untuk Meningkatkan Hasil Belajar Peserta Didik Kelas Kelas X Sman 1 Ujungbatu”, JS, vol. 10, no. 2, pp. 580–589, Apr. 2026.