Mitchell และผู้แต่งคนอื่นๆ. 1993. Formers' perceptions of botanical pesticide use in northern ThailandLynne A. Mitchell. Faculty of Graduate Studies, The University of Guelph;

Mitchell และผู้แต่งคนอื่นๆ. Formers' perceptions of botanical pesticide use in northern ThailandLynne A. Mitchell. . [S.l.]:The University of Guelph, 1993.

Mitchell และผู้แต่งคนอื่นๆ. (1993) Formers' perceptions of botanical pesticide use in northern ThailandLynne A. Mitchell . The University of Guelph/[S.l.].