Borrina Mapaka in Alaska with Isaac James, Kipchoge February 7, 2013 800 × 600 Borrina Mapaka in Alaska with Isaac James, Kipchoge L to R: Kipchoge, Isaac James (djembe on Yula), Borrina Mapaka (writer of Yula), unknown, Larry Zarella, unknown. Borrina Mapaka sang his beautiful song Yula in our yard in 2004 for Whole Wheat Radio.