Astutik, Rini, 		Bakhtiar, Afakhrul, 		Mustakim, Zainal, AND 		Zamzamy, Muhammad.
" Book Markir Application Program for Student with Special Needs at Universitas Muhammadiyah Gresik" <em>Kontribusia : Research Dissemination for Community Development</em> [Online], Volume 5 Number 2 (1 August 2022)