Tamil Nadu (India). Department of Industries and Commerce

• Action plan for Nilgiris District, 1981-82
• Directory of Tamilnadu small scale industrial units (as on 31-12-1980), districts Coimbatore, Nilgiris, Periyar
• Directory of Tamilnadu small scale industrial units (as on 31-12-1980), districts South Arcot, North Arcot, Chingleput
• Directory of Tamilnadu small scale industrial units (as on 31-12-1980), district[s] Madras (North), Madras (Central), Madras (South)
• Directory of Tamilnadu small scale industrial units (as on 31-12-80), districts Dharmapuri, Pudukkottai, Ramanathapuram
• Directory of Tamilnadu small scale industrial units (as on 31-12-80), districts Madurai, Tirunelveli, Kanyakumari
• Directory of Tamilnadu small scale industrial units (as on 31-12-80), districts Salem, Tanjavur, Tiruchirappalli