Many researchers publish papers that apply Sharma’s specific formulas. Searching for "Stability analysis using Sharma (1988)" can often yield the specific methodology you need for free.

Part IV: Analysis of Gene Action and Variance Components (Chapters 11-23)

is widely regarded as a comprehensive "ready-reckoner" for students and professional plant breeders who need to apply complex statistical models to biological research. Book Overview

Detailed analysis of gene action and variance components to help breeders design effective methodology.