Rustige invasie op het gouverneurskantoor: dames-verenigingen komen op voor de rechten der vrouw (A quiet invasion of the governor's office)
A quiet invasion of the governor's office: women petition for a marriage law
De Locomotief, 17 Dec 1953: about a hundred women from seven Semarang associations, led by Perwari and including Gerwis, ride 40 becaks to the Governor's Office to petition for a marriage law securing women's legal position and for a freeze on the 1952 regulation giving pensions to second-to-fourth wives. A Gedung Rakj