Gaya APA

Simarmata, J. et al (2025). E-Book Pengantar Graphical User Interface (GUI) . : Yayasan Kita Menulis.

Gaya MLA

Simarmata, Janner. et al. "E-Book Pengantar Graphical User Interface (GUI)". : Yayasan Kita Menulis, 2025. Electronic Resource.