F. Ramadhan, D. Desyandri, C. Chandra, and R. Rahmatina, “The Use of the Problem-Based Learning (PBL) Model to Improve Speed Reading Skills Using the Spreeder Application in Fifth-Grade Students of SDN 02 Situjuh Gadang”, TOFEDU, vol. 4, no. 6, pp. 2309–2313, Jul. 2025.