3 8 7 . 5 ........ Bus iness ▁eth ics ▁ 5 4 1 0 - 5 4 1 7 . 5 ........ Mark eting . ▁Distribution ▁of ▁products ▁ 5 4 1 9 - 5 4 2 2 ........ .. ▁Wh oles ale ▁trade ▁ 5 4 2 8 - 5 4 2 9 . 6 ........ ▁Ret ail ▁trade ▁ 5 4 2 9 . 7 - 5 4 3 0 . 6 .... .. S ho pping ▁cent ers . ▁Sho pping ▁m alls ▁ 5 4 3 7 - 5 4 4 4 ........ .. P urch asing . ▁S elling . ▁Sales ▁personnel . ▁Sales ▁execut ives ▁ 5 4 4 6 - 5 4 5 9 ........ .. Can v ass ing . ▁Ped d ling ▁ 5 4 6 0 - 5 4 6 9 . 5 ........ Dep art ment ▁stores . ▁Mail ▁order ▁business . ▁Super mark ets . ▁Con ven ience ▁stores ▁ 5 4 6 9 . 7 - 5 4 8 1 ........ Mark ets . ▁F airs ▁ 5 4 8 2 - 5 4 8 2 . 4 ........ Second hand ▁trade ▁ 5 4 8 2 . 6 - 5 4 8 2 . 6 5 ..... Black ▁market ▁ 5 4 8 4 - 5 4 9 5 ........ .. W are h ouses . ▁Storage ▁ 5 5 2 0 - 5 5 4 1 ........ .. Office ▁equipment ▁and ▁supplies ▁ 5 5 4 6