लेखक: Catherine Steele

Holly Andrews & Catherine Steele: Psychology Express: Statistics in Psychology

Holly Andrews & Catherine Steele: Psychology Express: Statistics and SPSS eBook (Undergraduate Revision Guide)

Ann Bicknell & Holly Sands: Psychology Express: Occupational Psychology

Ann Bicknell & Holly Sands: Psychology Express: Occupational Psychology

Holly Andrews & Catherine Steele: Psychology Express: Educational Psychology