Ultimate Slap Bass 얼티밋 울티밋 슬랩 베이스 교재
PLAY BASS – FOR BEGINNERS & IMPROVERS (베이스라인 퍼블리싱 베이스 에센셜 시리즈)
ROCKSCHOOL ACOUSTIC GUITAR – GRADE 3
ROCKSCHOOL ACOUSTIC GUITAR – GRADE 2
ROCKSCHOOL ACOUSTIC GUITAR – GRADE 1
ROCKSCHOOL ACOUSTIC GUITAR – Debut GRADE