“IMPLEMENTATION OF ERGONOMIC PRINCIPLE ON RATTAN (Calamus spp.) HANDICRAFT AT SMALL MEDIUM INDUSTRY UD. ELSINDO IN RUMBAI PEKANBARU RIAU PROVINCE”, Universitas Riau, vol. 2, no. 2, pp. 26–39, Oct. 2018, doi: 10.31258/jiik.2.2.26-39.