Professional/Trade sources:Professional or trade sources are written by and for professionals or practitioners in a particular field or discipline, but are not strictly research related. Popular sources can be written by almost anyone, from freelance journalists to experts, but are always meant to appeal to a general audience.Scholarly publications (Journals)
Scholarly publications (Journals)A scholarly journal has a board of referees (or reviewers) who are experts within their field. They evaluate the quality of submitted articles (academically, as well as its content and language) and if the article suits the journal's subject matter.Popular sources (News and Magazines)
A popular source: Is a publication, such as a newspaper or magazine that you could buy in a grocery store. Is often illustrated with colorful pictures and advertisements. Is many times written by journalists or professional writers for a general audience.
Explanation:
there are many but i hope this three types may help you!
Executive Order 8802 was signed by President Franklin D. Roosevelt on June 25, 1941, to prohibit ethnic or racial discrimination in the nation's defense industry. ... Many citizens of Italian or German ethnicity were affected by World War II and this was impeding the war effort and lowering morale.
Nazi leaders sought to expel Jews from Germany by sistematically isolating them from society and eliminating them from the German Economy, depreving them of any opportunity to earn a living