Coba jelasin Lihat juga dari Sungkup plastik dalam bahasa melayu dong

Marr, C.W. 1993. Plastic Mulches for Vegetables. Kansas State University. October: 1-3.

McCraw, D. Motes, J.E. 2007. Use of Plastic Mulch and Row Covers in Vegetable Production. Oklahoma Cooperative Extension Fact Sheets. 1-5.