Kenya Concrete, Structural, Ceramics Tiles, Wood Plys and Interior Designs Workers Union (Represented by Its Promoters Angoya & 6 others) v Registrar of Trade Unions ; Kenya Building,Construction, Timber, Furniture and Allied Industries Employees Union(Interested party) (Appeal 10 of 2011) [2013] KEIC 524 (KLR) (9 December 2013) (Judgment)