Article
關於地的一些知識/時及曆, Knowledge about the earth/time and calendar

農隱 Nong Yin (Author),

Keywords: astronomy,

Article
關於地的一些知識/地球的現狀, Knowledge about the earth/the current state of the earth

農隱 Nong Yin (Author),

Keywords: animals, nature, water, biology, astronomy, plants,