Evi Fitriani
President Joko Widodo`s Foreign Policy: Implications for Indonesia-Australia Relations (artikel buku: Strangers Next Door? Indonesia and Australia in the Asian Century)
2018
 UI - Makalah dan Kertas Kerja
Hilliard, Elizabeth
Windows and doors
Conran Octopus Lim, 1996
 Buku Referensi
Wals, Chad
Doors into poetry
Prentice-Hall, 1962
 Buku Teks SO
Gudykunst, William B
Communicating with strangers
McGraw-Hill, 1992
 Buku Teks
Shadbolt, Maurice
Strangers and journeys
Hodder and Stoughton, 1972
 Buku Teks SO