During my undergrad in Japan, there was this one-semester course, I think it was during the first year (of a four-year programme), about how to present, write essays, and cite, as well as semi-compulsory library sessions on reference management systems. I am kinda shocked to find out that a similar writing course is offered here only for the final year students as a dissertation consultation. Way too late.
In the past semester, for one rather essay-oriented course, I tried to be a helpful TA by covering as much of those topics as possible, but this is not something that one or a few TAs could possibly solve.