His titles include "Yahudi Infotainment" about how Jews control the media, and "Jewish Secret Business Success" which seems to be filled with Talmud quotes about business.
Also "The Secret Power of Jews," "Obama is the Black Hitler," "The Secret Agreement between Palestine and Jews," "Sayeret Special Force," "Krav Maga: Israeli Self Defense," "Marketing hypnosis for world dictators" and"Fuhrer File: A Story About The Fourth Reich."
He is described in one blurb this way:
Bulman is the founder of the New Historians, a group of Israeli scholars who have challenged long-held perceptions of the origins of the Israeli-Palestinian conflict. Their research documents the crimes and atrocities committed by the Israeli armed forces, including rape, torture, and ethnic cleansing.
It just may be that "Rabbi Bulman" is just someone who found a niche to make money writing what the Indonesian audience wants to believe about Jews.
A major rabbi of the last century, Nachman Bulman, had a son named Shabsi, but I don't know if this is the same person or someone whose name was appropriated for these books.
Very, very weird.