Lala-Bisa language
Lala-Bisa is a Bantu language of Zambia that is closely related to Bemba.
Swaka dialect is divergent, and sometimes classified as a separate language (Nurse 2003). Maho (2009) lists Biisa (Wisa), Lala, Ambo, Luano, and Swaka as distinct languages, with Ambo and Luano closest to Lala.