Consumers’ income and consumers’ gender are directly measured by asking consumers on their gender and income. Thu nhập và giới tính của khách hàng sẽ được điều tra và biết bằng cách hỏi trực tiếp người tiêu dùng.
Consumers ' income and consumers ' gender are directly measured by asking consumers on their gender and income.Income and gender of the customer will be investigated and know by asking directly at the consumer.
Consumers 'income and Consumers' gender are measured by asking trực Consumers on Their gender and income. Income and gender of the customer will be investigated and knew by asking directly to consumers.