Mitatsa, S. “The Quality Management for Organic Fertilizer Production of Farmers in Damnoensaduak District, Ratchaburi Province: The Quality Management for Organic Fertilizer Production of Farmers in Damnoensaduak District, Ratchaburi Province”. LAWARATH SOCIAL E – JOURNAL, vol. 1, no. 2, Aug. 2019, pp. 1-12, https://so04.tci-thaijo.org/index.php/lawarathjo/article/view/247549.