Các nguồn lý thuyết (English):

• https://usaco.guide/gold/unweighted-shortest-paths?lang=cpp
• https://usaco.guide/gold/shortest-paths?lang=cpp
• https://csacademy.com/lessons/
• https://usaco.guide/bronze/intro-graphs?lang=cpp
• https://usaco.guide/silver/graph-traversal?lang=cpp
• https://cp-algorithms.com/

Tiếng Việt:

• https://vnoi.info/wiki/algo/graph-theory/shortest-path.md
• https://vnoi.info/wiki/algo/graph-theory/breadth-first-search.md
• https://vnoi.info/wiki/algo/graph-theory/Depth-First-Search-Tree.md
• https://howkteam.vn/course/cau-truc-du-lieu-va-giai-thuat/bfs-va-dfs-4320
• https://viblo.asia/p/cac-giai-thuat-tim-kiem-tren-do-thi-1Je5EBRGKnL

Tìm kiếm thêm bài tập?

• https://lqdoj.edu.vn/contests/?contest=&orgs=75
• https://lqdoj.edu.vn/contest/graphmarathon
• HackerRank, CSAcademy, Kattis, Atcoder, Codeforces, \(\dots\)