APA Citation

(2019). Umar bin Khattab: Ksatria pemberani (Cetakan pertama, 2019.). Surkarta: Ziyad Books.

Chicago Style Citation

Umar Bin Khattab: Ksatria Pemberani. Cetakan pertama, 2019. Surkarta: Ziyad Books, 2019.

MLA Citation

Umar Bin Khattab: Ksatria Pemberani. Cetakan pertama, 2019. Surkarta: Ziyad Books, 2019.

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