- unit-four-words- -> unit-i
- unit-i -> unit-i-mobile-co
- unit-i-modern-ph -> unit-ii-600-1450
- unit-ii-600-ce-1 -> unit-ii-the-basi
- unit-ii-the-huma -> unit-iii-machine
- unit-iii-macro-r -> unit-introductio
- unit-introductio -> unit-iv-politica
- unit-iv-politica -> unit-level-strat
- unit-level-strat -> unit-objectives
- unit-objectives -> unit-one
- unit-one -> unit-one-identit
- unit-one-intro-t -> unit-one-the-beg
- unit-one-the-com -> unit-outline-qua
- unit-outline-top -> unit-overview-th