Surabaya Post, 15 Februari 1957, hlm. 2: panitia Hari Wanita Internasional Surabaya
Surabaya Post, 15 February 1957, p. 2: Surabaya International Women's Day committee
Surabaya Post p. 2, 15 February 1957: brief reporting that the Surabaya women's organisation federation formed a committee, chaired by Gerwani, to celebrate International Women's Day, with other left and nationalist women's groups as officers. Evidence of Gerwani's leading role in local women's coalitions.