Izvornik: Noona Comprehensive Piano Lessons Level 2. Lightning Bugs Ostinato Pattern Loco. Walter Noona. Piano Method sheet music. For piano.
Prijevod: Noona Sveobuhvatni Piano Lessons Level 2. Krijesnice ostinantni Pattern Loco. Tren Gornji Ledger Bilješke. Klavir Metoda note.