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Definitions of Challenge Calls & Concepts |
Callerlab Advanced Definitions
Pocket Reference of C1 List Calls by Ben Rubright
Pocket Reference of C2 List Calls by Ben Rubright
Pocket Reference of C3A List Calls by Ben Rubright
Pocket Reference of C3B List Calls by Ben Rubright
Pocket Reference of C4 Calls and Concepts by Ben Rubright
Book One of Bill Ackerman's C4 Definitions
Book Two of Bill Ackerman's C4 Definitions
Introductory Items