Bible translation (WBT, NTM, World Team) ***
Culture and language preservation (Pioneers, WBT) ***
Discipleship (GLO, OMF, OM) ***
Language surveys (WBT)
Literature production, frontline (WBT, WEC, CBMI) ***
Literature production, off-field (WBT, Bridgeway)
Refugee ministries (IT)
*** not suitable for short-term service
