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Teori Graf
Graf adalah himpunan benda-benda yang disebut "simpul" (vertex atau node) yang terhubung oleh "sisi" (edge) atau "busur" (arc). Biasanya graf digambarkan sebagai kumpulan titik-titik (melambangkan "simpul") yang dihubungkan oleh garis-garis (melambangkan "sisi") atau garis berpanah (melambangkan "busur").
via http://id.wikipedia.org/wiki/Teori_graf
