A PRELIMINARY STUDY ON LARVICIDAL EFFICACY OF Piper nigrum L. (PIPERACEAE) EXTRACTS AGAINST DENGUE VECTOR, Aedes albopictus (DIPTERA: CULICIDAE) - Emira Izzati, Abdul Aziz; Nor Aliza, Abdul Rahim; Siti Zaleha, Raduan; Razitasham, Safii (Universiti Kebangsaan Malaysia, 2021)