R. Rahmaniati and N. Hijriah, “Upaya Meningkatkan Hasil Belajar Matematika melalui Penggunaan Media Manipulatif: Efforts to Improve Learning Outcomes of Mathematics through the Use of Manipulative Media”, Bitnet J Pendidikan Teknologi Informasi, vol. 1, no. 1, pp. 25–28, Feb. 2016.