21C hit design hit brand and logo, volume 1
DNBooks , 2008
 Buku Referensi
21C hit design hit brand and logo, volume 2
DNBooks, 2008
 Buku Referensi
Gwon, Young-Soo
21C : hit design hit brand & logo
Dnbooks publishing company, 2008
 Multimedia
Rima Anggun Fajarwati
Pengaruh Perubahan Logo Gojek terhadap Sikap Konsumen terhadap Merek = The Effect of Logo Change of Gojek on Consumer’s Brand Attitude
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2020
 UI - Tesis Membership
Abelson, Harold
Logo for the Apple II
Byte/McGraw-Hill, c1982
 Buku Teks SO