Lisa Feigenson, a specialist in child number development, and Jenny Wang, both from Johns Hopkins University, observed 14 to 18-month old babies in a simple experiment.
…………………………………………………………………………………………………………. यो मुलुक सिंगापुर जस्तो बनिसकेको छैन मात्र राजनीतिक परिवर्तन...