“ČERVENÁ One Year Journey ofx The Blazing Fire”

https://issuu.com/yudhabumi/docs/buku_akhir_tahun__upload_ …

Kisah kita diabadikan.

“MINERIA 7th Edition: New Era of Mining”

https://issuu.com/yudhabumi/docs/mineria7th_edisi …

Di sinilah impian kita dituangkan.

“Kamar Gelap Yudha Bumi”

https://issuu.com/yudhabumi/docs/kamargelap2019yb …

Di sinilah karya kita dikenang.