APA (7th ed.) Citation

Laksono, H. 4 Keutamaan Istigfar. Gema Insani.

Chicago Style (17th ed.) Citation

Laksono, Helmy. 4 Keutamaan Istigfar. Gema Insani.

MLA (8th ed.) Citation

Laksono, Helmy. 4 Keutamaan Istigfar. Gema Insani.

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