35. JENIS PENELITIAN OBSERVASIONAL EKSPERIMENTAL ESTIMASI UJI HIPOTESIS 1 POPULASI 2 POPULASI KOMPARASI KORELASI CLUST. R.S. STRA. R.S. SIMPLE/ SYST. R.S. 2 POPULASI 1 POPULASI K P K P K P K P CROSS SECT CASE CTRL CO-HORT CROSS SECT CASE CTRL CO-HORT K P K P