“In Memoriam: Donald E. Hawkins, Professor Emeritus (November 9, 1936 – December 31, 2025)” (2026) Zbornik radova Ekonomskog fakulteta u Istočnom Sarajevu, (32), pp. 77–80. Available at: https://ojs.zrefis.ekofis.ues.rs.ba/zrefis/article/view/22 (Accessed: 13 September 2026).