APA (7th ed.) Citation

Wirasto. Sketsa wajah matematika SD Indonesia. FKIE-IKIP.

Chicago Style (17th ed.) Citation

Wirasto. Sketsa Wajah Matematika SD Indonesia. FKIE-IKIP.

MLA (8th ed.) Citation

Wirasto. Sketsa Wajah Matematika SD Indonesia. FKIE-IKIP.

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