The Narrow Path Ministries

I was doing a study on baptisim when I ran across triune baptisim in the international bible standard encyclopedia. Does anyone still follow it (not including the greek church) and is it scriptual or just tradition?

Mivac

PS here is a link to the IBSE page;
http://www.studylight.org/enc/isb/view.cgi?number=T8914

My mother was baptized this way back in the 1940s. I'm pretty sure her church still does; here's a link to their website: The Church of the Brethren