Important Reference books of Semester 8 include textbooks on biostatistics and research methodology such as Pharmaceutical statistics by Stanford Bolton and Design and analysis of experiments by Douglas and Wiley. Reference books for social and preventive pharmacy include the Textbook of preventive medicines published by JAYPEE publishers and Community Pharmacy Practice by Ramesh Adepu. For pharmaceutical marketing management, important references are books by Philip Kotler, Lane Keller, Subba Rao, and books on marketing management. Recommended references for cosmetic science include books by authors Harris, Sanju Nanda, and PP Sharma.