Efektivitas Bacillus thuringiensis israelensis (Bti) terhadap pengendalian larva Aedes aegypti: penelitian pada tempat penampungan air (TPA) tanpa penutup di Kelurahan Rawasari, Jakarta Pusat = Effectivity Bacillus thuringensis israelensis (Bti) in controlling Aedes aegypti larvae : study on opened reservoirs in Rawasari subdistrict, Central Jakarta