2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136220We construct a Kirby diagram of the rational homology ball used in "generalized rational blow-down" developed by Jongil Park. The diagram consists of a dotted circle and a torus knot. The link is simpler, but the parameters are a little complicate. Euclidean Algorithm is used three times in the construction and the proof.10 pages, 8 figuresGeometric Topology57M25; 57D65; 55A25text