Ishartono, N. "Meningkatkan Literasi Matematika untuk Menyongsong Revolusi Industri 4.0.": Konferensi Nasional Penelitian Matematika dan Pembelajarannya IV : March 27th, 2019, Auditorium Moh. Djazman, Universitas Muhammadiyah Surakarta, Indonesia = "Enhancing Mathematical Literacy to Meet the 4.0 Industrial Revolution." : The Fourth National Conference on Mathematics Research and Its Learning. [Bristol]: IOP Publishing.

"Meningkatkan Literasi Matematika untuk Menyongsong Revolusi Industri 4.0." : Konferensi Nasional Penelitian Matematika dan Pembelajarannya IV : March 27th, 2019, Auditorium Moh. Djazman, Universitas Muhammadiyah Surakarta, Indonesia = "Enhancing Mathematical Literacy to Meet the 4.0 Industrial Revolution." : The Fourth National Conference on Mathematics Research and Its Learning / chairperson: Naufal Ishartono, M.Pd . — [Bristol] : IOP Publishing. — 1 Online-Ressource; Illustrationen. — (Journal of physics / Conference Series ; volume 1265 (2019))

Ishartono, Naufal. "Meningkatkan Literasi Matematika Untuk Menyongsong Revolusi Industri 4.0.": Konferensi Nasional Penelitian Matematika Dan Pembelajarannya IV : March 27th, 2019, Auditorium Moh. Djazman, Universitas Muhammadiyah Surakarta, Indonesia = "Enhancing Mathematical Literacy to Meet the 4.0 Industrial Revolution." : The Fourth National Conference On Mathematics Research and Its Learning.[Bristol]: IOP Publishing.