并列题名：Studies on Marxism 并列题名：Studies on paradoxes Studies on Marxism 并列题名：Studies of Lenin's Marxism 并列题名：15 Lectures on Marxism 并列题名：Study on austromarxism 并列题名：Studies on pedagogy 15 Lectures on Marxism 并列题名：Soviet Marxism 并列题名：Introduction of Marxism