Tatchai Subsuebwong และ Narumon Komalamisra. (2014) Insecticidal activities of piper retrofractum (VAHL.) againt aedes aegypti (LINN.) and culex quinquefasciatus (SAY). Mahidol University:ม.ป.ท.Tatchai Subsuebwong และ Narumon Komalamisra. 2014. Insecticidal activities of piper retrofractum (VAHL.) againt aedes aegypti (LINN.) and culex quinquefasciatus (SAY). ม.ป.ท.:Mahidol University;Tatchai Subsuebwong และ Narumon Komalamisra. Insecticidal activities of piper retrofractum (VAHL.) againt aedes aegypti (LINN.) and culex quinquefasciatus (SAY). ม.ป.ท.:Mahidol University, 2014. Print.