It was 3 members here,from there Celebes,and Sumatra and somewhere else,one was very good,u can try local shamans, unfortunately Indonesia magic is close I knw is the finbarr book the deadliest spells,a 30 pages book full of shaman Indonesia witchraft, I tink the deadliest spells of the javaneses people,finbarr book.
I’m afraid this forum does not review or endorse outside orders or covens. Sometimes people post meetup topics but I’ve never seen one for Indonesia, let alone Bandung. It’s had to find these even in the US, and even then, only in the most populated cities.