2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/157382This paper is an addendum to [4], in which the authors constructed a simply connected minimal complex surface of general type with p_g=0 and K^2=3. In this paper we construct a new non-simply connected minimal surface of general type with p_g=0, K^2=3 and H_1=Z/2Z using a rational blow-down surgery and Q-Gorenstein smoothing theory.4 pages, 3 figures, some errors are fixedAlgebraic GeometryGeometric Topology14J29, 14J10, 14J17, 53D05text