SIVAKUMAR, K.; SIVAKUMAR, S.D. A Study on Farmers Preference and Market Promotion Activities with Reference to Rice Herbicides. Indian Journal of Marketing, [S. l.], v. 34, n. 12, 2004. Disponível em: https://www.indianjournalofmarketing.com/index.php/ijom/article/view/34142. Acesso em: 21 jan. 2026.