Match the primary sources of literature review in Column A with its relevance to the research problem in column B.Write your answer on the blank space provided.
A __1.Advisory from a DOH official __2.Botanical journals __3.Nutrition facts on labels of canned goods. __4.Progress report card __5.Resurts of Personality test __6.Trancscriptd of interviews with pupils,teachers and parents.
B a.Growth and yield of lettuce plant with different levels of homemade hydropinics.