นักเตะคนไหนมาจากอินโดนีเซีย?
Which players are from Indonesia?
df1 = pd.DataFrame(columns=['Player', 'Country']); df2 = pd.DataFrame(columns=['Country_name', 'Country_id'])
df1[df1['Country'].isin(df2[df2['Country_name'] == 'Indonesia']['Country_id'])]['Player']