"Marketing research." . . "Social sciences Research." . . "Academy for Educational Development." . . "Focus groups." . . . . "Social sciences Methodology." . . . . . . . "Methodological review a handbook for excellence in focus group research" . "Methodological review : a handbook for excellence in focus group research"@en . . . "A handbook for excellence in focus group research"@en . . "Methodological review : a handbook for excellence in focus group research" . . . . . . . . . . . . . . . . "Handbooks and manuals" . "Handbooks and manuals"@en . . "Handbook for excellence in focus group research"@en . "Handbook for excellence in focus group research" . . . . . . "Academy for Educational Development (AED)" . . "Focus groups Handbooks, manuals, etc." . .