関連ワード:
explain primary and secondary industry with example explain primary and secondary sector with example explain primary and secondary industries with the help of examples class 11 explain primary secondary and tertiary sector with examples explain primary secondary and tertiary sector with examples class 10 explain primary secondary and tertiary sector with examples class 9 explain primary secondary and tertiary sector with examples essay define primary secondary and tertiary sector with example define primary secondary and tertiary sector with example class 10 what are the differences between primary and secondary industry
