Four-Chord Songs for Beginning Guitarists | Making Music Magazine
Guitar Chord Basics: How to Play G C D Chords | The Art of Manliness
How to Play Guitar Chords (with Pictures) - wikiHow
The Guitar 4-Chord Songbook G-C-D-Em - Melody/Lyrics/Chords - Guitar Collection | Hal Leonard Online
Four chords every beginning guitar player should know and songs that go with them | Jamiebobamie
Amazon.co.jp: 4-Chord Worship Songs for Guitar: Play 25 Worship Songs with Four Chords: G-C-D-Em (GUITARE) (English Edition) 電子書籍: Hal Leonard Corp.: 洋書