P. N. Anggraeni, D. Nuvitalia, and Sukarno, “243. Penerapan Model Problem Based Learning dalam Meningkatkan Hasil Belajar Matematika Peserta Didik Kelas 1 SDN Pati Lor 05 Berbantuan Media Counting Box”, psnppg, vol. 1, no. 1, pp. 2161–2170, Jul. 2023.