APA (7th ed.) Citation

Sirait, V. E., & Betty, L. B. (2015). Trik A-Z Piano The Best Instruction. Indoliterasi.

Chicago Style (17th ed.) Citation

Sirait, Van Eko, and Lea Belandina Betty. Trik A-Z Piano The Best Instruction. Indoliterasi, 2015.

MLA (8th ed.) Citation

Sirait, Van Eko, and Lea Belandina Betty. Trik A-Z Piano The Best Instruction. Indoliterasi, 2015.

Warning: These citations may not always be 100% accurate.