Philip Arthur Gborsong

• Cambridge Black Star English for Senior High Schools Student's Book 1
• Cambridge Black Star English for Senior High Schools Student's Book 2
• Cambridge Black Star English for Senior High Schools Student's Book 3
• Cambridge Black Star English for Senior High Schools Student's Book 4
• Cambridge Black Star English for Senior High Schools Teacher's Guide 1
• Cambridge Black Star English for Senior High Schools Teacher's Guide 2
• Cambridge Black Star English for Senior High Schools Teacher's Guide 3
• Cambridge Black Star English for Senior High Schools Teacher's Guide 4
• Communication, culture and health