Gregoria loved to travel around the country. She liked bringing with her a travel brochure that
inform her of the different sites worth visiting in the area. Her travel brochure was usually produced
by the tourism department of the province. It shows pictures of destinations visited by tourists and
a few basic information about the place like the origin of the name, the historical significance of the
place, and some other information acquired by the office’s researchers and writers.

Is the travel brochure a primary, secondary, or a tertiary source? Justify your answer