Vietnam (1) Communication (1) Identification (1) Statistics (1) City dwellers (1) Time (1) Spring (1) Slopes (Physical geography) (1) Rice (1) Proportion (1) Prophecies (Occultism) (1) Plantations (1) Pictures (1) Optics (1) North (The word) (1) May (Month) (1) Licenses (1) Land use (1) Land settlement (1) Hydrologic cycle (1) Fortune-telling (1) Fashion (1) Example (1) Cycles (1) Culture (1) Crop zones (1) Statistics (1) Classification (1) Classification (1) Identification (1)