`PlotLabel` for plots in a `Table`

Question

I have a Table containing two plots, given by
Table[
 Plot[{Re[f[n]] /. j -> 3, Im[f[n]] /. j -> 3}, {n, 0, 15}, 
  GridLines -> Automatic, PlotRange -> All, PlotLegends -> {"Real", "Imaginary"}, 
  PlotLabel -> f[n]], 
{f, {Sum[Sinc[Pi*(#1 - i*j)], {i, 1, Floor[#1]}] & , 
   (-1 + E^(2*I*Pi*#1))/(j*(-1 + E^((2*I*Pi*#1)/j))) & }}
]

As you can see, Mathematica has rewritten the first PlotLabel (i.e.,Sum[Sinc[Pi*(#1 - i*j)], {i, 1, Floor[#1]}] &) into an expression it considers more useful or natural. I don't want it to do this. I want the PlotLabel for that plot to look like this:

i.e., as though it was written PlotLabel -> "expr". But the other label is already how I want it.
I have experimented with using StringForm but it doesn't help. How do I do this? Or is it not possible?

kglr · Answer

Table[Plot[{Re[ReleaseHold@f] /. j -> 3,  Im[ReleaseHold@f] /. j -> 3}, {n, 0, 15}, 
  GridLines -> Automatic, 
  PlotRange -> All, ImageSize -> 350, 
  PlotLegends -> {"Real", "Imaginary"}, 
  PlotLabel ->  f], 
{f, {HoldForm@Sum[Sinc[Pi*(n - i*j)], {i, 1, Floor[n]}], 
   HoldForm[(-1 + E^(2*I*Pi*n))/(j*(-1 + E^((2*I*Pi*n)/j)))]}}]

You can replace HoldForm and ReleaseHold with Defer and First, respectively, to get the same result.
As Bob Hanlon suggested in comments, in versions 12.0+ you can use ReImPlot as follows:
 Table[ReImPlot[ReleaseHold[f] /. j -> 3, {n, 0, 15}, 
    GridLines -> Automatic, PlotRange -> All, ImageSize -> 350, 
    PlotLegends -> "ReIm", 
    ReImLabels -> {"Real", "Imaginary"}, 
    ReImStyle -> {ColorData[97][1], {ColorData[97][2], Dashing[{}]}},
    PlotLabel -> f], 
  {f, {HoldForm@Sum[Sinc[Pi*(n - i*j)], {i, 1, Floor[n]}], 
      HoldForm[(-1 + E^(2*I*Pi*n))/(j*(-1 + E^((2*I*Pi*n)/j)))]}}]

`PlotLabel` for plots in a `Table`

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