To memorize one efficiently, I assume that students usually utilize the glossary
such as this book.
On the other hand, some experts such as Taro Sugimura
recommend to make use of vocabulary cards. The merit of using cards is said that
we can easily memorize the vocaburally than just using glossary.
However, writing vocabulary on cards is time-consuming. Unfortunatry, I have enough
time to study English. So, it annoys me whether I should use cards or not.
But I have enough time to be worry about that ,too. Therefore, now I use both of them.